A. Wang, A. Chevallereau, F. Carlos, and R. B. , Walking and steering control for a 3D biped robot considering ground contact and stability, Robotics and Autonomous Systems, vol.60, issue.7, 2013.
DOI : 10.1016/j.robot.2012.02.007
URL : https://hal.archives-ouvertes.fr/hal-00794617

A. Agrawal, O. Harib, A. Hereid, S. Finet, M. Masselin et al., First Steps Towards Translating HZD Control of Bipedal Robots to Decentralized Control of Exoskeletons, IEEE Access, vol.5, 2017.
DOI : 10.1109/ACCESS.2017.2690407
URL : https://hal.archives-ouvertes.fr/hal-01544572

J. J. Alcaraz-jiménez, D. Herrero-pérez, and H. Martínez-barberá, Robust feedback control of ZMP-based gait for the humanoid robot Nao, The International Journal of Robotics Research, vol.32, issue.9-10, 2013.
DOI : 10.1109/IROS.2011.6094491

G. Arechavaleta, J. P. Laumond, H. Hicheur, and A. Berthoz, An Optimality Principle Governing Human Walking, IEEE Transactions on Robotics, vol.24, issue.1, pp.5-14, 2008.
DOI : 10.1109/TRO.2008.915449
URL : https://hal.archives-ouvertes.fr/tel-00260990

A. Banaszuk and J. Hauser, Feedback linearization of transverse dynamics for periodic orbits in R3 with points of transverse controllability loss, Systems & Control Letters, vol.26, issue.3, pp.185-193, 1995.
DOI : 10.1016/0167-6911(95)00014-Z

R. Bionics, Arex bionics website, 2016.

R. Blickhan, The spring-mass model for running and hopping, Journal of Biomechanics, vol.22, issue.11-12, 1989.
DOI : 10.1016/0021-9290(89)90224-8

T. De-boer, FOOT PLACEMENT in robotic bipedal locomotion, 2012.

B. Bona and M. Indri, Friction Compensation in Robotics: an Overview, Proceedings of the 44th IEEE Conference on Decision and Control, pp.4360-4367, 2005.
DOI : 10.1109/CDC.2005.1582848

B. Brogliato, Nonsmooth Impact Mechanics. Models,Dynamics and Control, Lecture Notes in Control and Information Sciences, 1996.
DOI : 10.1007/978-3-319-28664-8

E. Arthur, Y. Bryson, and . Ho, Applied Optimal Control, 1975.

B. G. Buss, K. A. Hamed, B. A. Griffin, and J. W. Grizzle, Experimental results for 3D bipedal robot walking based on systematic optimization of virtual constraints, 2016 American Control Conference (ACC), pp.4785-4792, 2016.
DOI : 10.1109/ACC.2016.7526111

B. Buss, Systematic Controller Design for Dynamic 3D Bipedal Robot Walking, 2015.

J. Carpentier, F. Valenza, and N. Mansard, Pinocchio: fast forward and inverse dynamics for poly-articulated systems. https://stack-of-tasks. github

J. Chen, The effects of gear reduction on robot dynamics. JPL, California Inst. of Tech, Proceedings of the NASA Conference on Space Telerobotics, pp.297-307, 1989.

D. Cheng, A. Isidori, W. Respondek, and T. J. Tarn, Exact linearization of nonlinear systems with outputs, Mathematical systems theory, pp.63-83, 1988.
DOI : 10.1007/978-1-4684-0068-7

C. Chevallereau, G. Abba, Y. Aoustin, F. Plestan, E. R. Westervelt et al., RABBIT: A testbed for advanced control theory, IEEE Control Systems Magazine, vol.23, issue.5, pp.57-79, 2003.
DOI : 10.1109/MCS.2003.1234651
URL : https://hal.archives-ouvertes.fr/hal-00794856

C. Chevallereau, J. W. Grizzle, and C. L. Shih, Asymptotically Stable Walking of a Five-Link Underactuated 3-D Bipedal Robot, IEEE Transactions on Robotics, vol.25, issue.1, pp.37-50, 2009.
DOI : 10.1109/TRO.2008.2010366
URL : https://hal.archives-ouvertes.fr/hal-00456192

C. Chevallereau, J. W. Grizzle, and C. Shih, Asymptotically stable walking of a five-link underactuated 3D bipedal robot, IEEE Transactions on Robotics, 2008.
URL : https://hal.archives-ouvertes.fr/hal-00456192

H. Steven, P. G. Collins, A. D. Adamczyk, and . Kuo, Dynamic arm swinging in human walking, Proceedings of the Royal Society of London B: Biological Sciences, pp.2763679-3688, 1673.

X. Da, O. Harib, R. Hartley, B. Griffin, and J. W. Grizzle, From 2D Design of Underactuated Bipedal Gaits to 3D Implementation: Walking With Speed Tracking, IEEE Access, vol.4, pp.3469-3478, 2016.
DOI : 10.1109/ACCESS.2016.2582731

X. Da, R. Hartley, and J. W. Grizzle, First steps toward supervised learning for underactuated bipedal robot locomotion, with outdoor experiments on the wave field, ICRA, 2017.

X. Da, R. Hartly, and J. W. Grizzle, First steps toward supervised learning for underactuated bipedal robot locomotion, with outdoor experiments on the wave field, ICRA, submitted, 2016.

. Koolen-de-boer-rebula, J. Goswami, and . Pratt, Capturability-based analysis and control of legged locomotion, part 1: Theory and application to three simple gait models, 2011.

A. M. Dollar and H. Herr, Lower Extremity Exoskeletons and Active Orthoses: Challenges and State-of-the-Art, IEEE Transactions on Robotics, vol.24, issue.1, pp.144-158, 2008.
DOI : 10.1109/TRO.2008.915453

C. Doppmann, B. Ugurlu, M. Hamaya, T. Teramae, T. Noda et al., Towards balance recovery control for lower body exoskeleton robots with Variable Stiffness Actuators: Spring-loaded flywheel model, 2015 IEEE International Conference on Robotics and Automation (ICRA), pp.5551-5556, 2015.
DOI : 10.1109/ICRA.2015.7139975

A. Khoury, Planning Optimal Motions for Anthropomorphic Systems. Theses, 2013.
URL : https://hal.archives-ouvertes.fr/tel-00833019

J. Englsberger, C. Ott, M. A. Roa, A. Albu-schäffer, and G. Hirzinger, Bipedal walking control based on Capture Point dynamics, 2011 IEEE/RSJ International Conference on Intelligent Robots and Systems, pp.4420-4427, 2011.
DOI : 10.1109/IROS.2011.6094435

W. Respondek, I. A. Tallj.-p, W. Barbot, and . Perruquetti, Feedback equivalence of nonlinear control systems: a survey on formal approach. Chapter, Chaos in Automatic Control, 2006.

. Ethercat, Ethercat website, 2016.

S. Feng, E. Whitman, X. Xinjilefu, and C. G. Atkeson, Optimization based full body control for the atlas robot, 2014 IEEE-RAS International Conference on Humanoid Robots, pp.120-127, 2014.
DOI : 10.1109/HUMANOIDS.2014.7041347

L. Alexander, J. D. Fetter, and . Walecka, Theoretical Mechanics of Particles and Continua, 1982.

L. Alexander, J. D. Fetter, and . Walecka, Theoretical Mechanics of Particles and Continua, 2003.

M. Fliess, J. Lévine, and P. Rouchon, Flatness and defect of non-linear systems: introductory theory and examples, International Journal of Control, vol.4, issue.6, pp.1327-1361, 1995.
DOI : 10.1007/978-1-4757-6802-2

L. B. Freidovich, A. S. Shiriaev, and I. R. Manchester, Stability Analysis and Control Design for an Underactuated Walking Robot via Computation of a Transverse Linearization, {IFAC} Proceedings Volumes 17th {IFAC} World Congress, pp.10166-10171, 2008.
DOI : 10.3182/20080706-5-KR-1001.01720

F. R. Gantmacher, The Theory of Matrices, AMS CHELSEA PUBLISHING, 2000.

P. Goldstein and S. , Classical Mechanics, Third Edition, 2000.

D. Gouaillier, C. Collette, and C. Kilner, Omni-directional closed-loop walk for NAO, 2010 10th IEEE-RAS International Conference on Humanoid Robots, pp.448-454, 2010.
DOI : 10.1109/ICHR.2010.5686291

B. Griffin and J. Grizzle, Walking gait optimization for accommodation of unknown terrain height variations, 2015 American Control Conference (ACC), pp.4810-4817, 2015.
DOI : 10.1109/ACC.2015.7172087

B. Griffin, Nonholonomic Virtual Constraints and Gait Optimization for Robust Robot Walking Control, 2016.
DOI : 10.1177/0278364917708249

B. Griffin and J. Grizzle, Nonholonomic virtual constraints and gait optimization for robust walking control. IJRR, 2016.
DOI : 10.1177/0278364917708249

J. W. Grizzle, C. H. Moog, and C. Chevallereau, Nonlinear control of mechanical systems with an unactuated cyclic variable, IEEE Transactions on Automatic Control, vol.50, issue.5, pp.559-576, 2005.
DOI : 10.1109/TAC.2005.847057
URL : https://hal.archives-ouvertes.fr/hal-00794882

J. W. Grizzle and C. Chevallereau, Virtual Constraints and Hybrid Zero Dynamics for Realizing Underactuated Biped Locomotion (proposed Chapter
DOI : 10.1007/978-94-007-7194-9_47-1

J. W. Grizzle, C. Chevallereau, R. W. Sinnet, and A. D. Ames, Models, feedback control, and open problems of 3d bipedal robotic walking, Automatica, issue.8, pp.501955-1988, 2014.
URL : https://hal.archives-ouvertes.fr/hal-01676474

K. H. Ha, S. A. Murray, and M. Goldfarb, An Approach for the Cooperative Control of FES With a Powered Exoskeleton During Level Walking for Persons With Paraplegia, IEEE Transactions on Neural Systems and Rehabilitation Engineering, vol.24, issue.4, pp.455-466, 2016.
DOI : 10.1109/TNSRE.2015.2421052

P. Hartman, Ordinary differential equations, 1982.

A. Hereid, E. A. Cousineau, C. M. Hubicki, and A. D. Ames, 3D dynamic walking with underactuated humanoid robots: A direct collocation framework for optimizing hybrid zero dynamics, 2016 IEEE International Conference on Robotics and Automation (ICRA), pp.1447-1454, 2016.
DOI : 10.1109/ICRA.2016.7487279

H. Honda-website, Achieving stable walking with asimo, 2016.

Y. Hurmuzlu, Dynamics of Bipedal Gait: Part I???Objective Functions and the Contact Event of a Planar Five-Link Biped, Journal of Applied Mechanics, vol.60, issue.2, pp.331-336, 1998.
DOI : 10.1115/1.2900797

Y. Hurmuzlu and D. B. Marghitu, Rigid Body Collisions of Planar Kinematic Chains With Multiple Contact Points, The International Journal of Robotics Research, vol.13, issue.1, pp.82-92, 1994.
DOI : 10.1098/rspa.1990.0125

J. W. Grizzle, Jessy grizzle's homepage, 2016.

J. W. Grizzle, Videos of the dynamic leg locomotion laboratory (university of michigan) (september 2016). https

S. Kajita, F. Kanehiro, K. Kaneko, K. Fujiwara, K. Harada et al., Biped walking pattern generation by using preview control of zero-moment point, 2003 IEEE International Conference on Robotics and Automation (Cat. No.03CH37422), pp.1620-1626, 2003.
DOI : 10.1109/ROBOT.2003.1241826

S. Kajita, F. Kanehiro, K. Kaneko, K. Yokoi, and H. Hirukawa, The 3D linear inverted pendulum mode: a simple modeling for a biped walking pattern generation, Proceedings 2001 IEEE/RSJ International Conference on Intelligent Robots and Systems. Expanding the Societal Role of Robotics in the the Next Millennium (Cat. No.01CH37180), pp.239-246, 2001.
DOI : 10.1109/IROS.2001.973365

S. Kajita, H. Hirukawa, K. Harada, and K. Yokoi, Introduction to Humanoid Robotics, 2014.
DOI : 10.1007/978-3-642-54536-8

S. Kajita and K. Tani, Dynamic biped walking control on rugged terrain using the linear inverted pendulum mode. Transactions of the Society of Instrument and Control Engineers, pp.311705-1714, 1995.

W. Khalil and E. Dombre, Modeling, Identification and Control of Robots, Applied Mechanics Reviews, vol.56, issue.3, 2002.
DOI : 10.1115/1.1566397

J. Kim, J. W. Han, D. Y. Kim, and Y. S. Baek, Design of a Walking Assistance Lower Limb Exoskeleton for Paraplegic Patients and Hardware Validation Using CoP, International Journal of Advanced Robotic Systems, 2013.
DOI : 10.1163/016918610X534295

N. Koceska, S. Koceski, P. B. Zobel, and F. Durante, Control architecture for a lower limbs rehabilitation robot system, 2008 IEEE International Conference on Robotics and Biomimetics, pp.971-976, 2008.
DOI : 10.1109/ROBIO.2009.4913131

D. Arthur and . Kuo, The six determinants of gait and the inverted pendulum analogy: A dynamic walking perspective. Human movement science, pp.617-56, 2007.

L. Michael-yurievich, Modeling, system identification, and control for dynamic locomotion of the littledog robot on rough terrain, p.2012

S. Li and W. Respondek, Orbital feedback linearization for multi-input control systems, International Journal of Robust and Nonlinear Control, vol.84, issue.5, pp.1352-1378, 2015.
DOI : 10.1080/00207179.2011.569955

B. Lim, K. Kim, J. Lee, J. Jang, and Y. Shim, An event-driven control to achieve adaptive walking assist with gait primitives, 2015 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), pp.5870-5875, 2015.
DOI : 10.1109/IROS.2015.7354211

B. Siciliano and &. Sciavicco, Lagrange and newtoneuler dynamic modeling of a gear-driven robot manipulator with inclusion of motor inertia effects, Advanced Robotics, pp.317-334, 1995.

I. R. Manchester, U. Mettin, F. Iida, and R. Tedrake, Stable dynamic walking over uneven terrain, The International Journal of Robotics Research, vol.1010, issue.3, pp.265-279, 2011.
DOI : 10.1007/s10514-009-9126-y
URL : http://groups.csail.mit.edu/robotics-center/public_papers/Manchester10.pdf

T. Mcgeer, Passive Dynamic Walking, The International Journal of Robotics Research, vol.5, issue.2, pp.62-82, 1990.
DOI : 10.1109/JRA.1986.1087060

S. Miossec and Y. Aoustin, Chapter Dynamical synthesis of a walking cyclic gait for a biped with point feet, pp.233-252, 2006.

S. Miossec, A contribution to the study of biped walk. Theses, Ecole Centrale de, Nantes (ECN), 2004.
URL : https://hal.archives-ouvertes.fr/tel-00684507

B. Morris and J. W. Grizzle, A restricted poincare map for determining exponentially stable periodic orbits in systems with impulse effects: Application to bipedal robots, 2005.

B. Morris and J. W. Grizzle, Hybrid Invariant Manifolds in Systems With Impulse Effects With Application to Periodic Locomotion in Bipedal Robots, IEEE Transactions on Automatic Control, vol.54, issue.8, pp.1751-1764, 2009.
DOI : 10.1109/TAC.2009.2024563

X. Mu and Q. Wu, On Impact Dynamics and Contact Events for Biped Robots via Impact Effects, IEEE Transactions on Systems, Man and Cybernetics, Part B (Cybernetics), vol.36, issue.6, pp.1364-1372, 2006.
DOI : 10.1109/TSMCB.2006.876818

R. Müller, K. Tschiesche, and R. Blickhan, Kinetic and kinematic adjustments during perturbed walking across visible and camouflaged drops in ground level, Journal of Biomechanics, vol.47, issue.10, pp.2286-91, 2014.
DOI : 10.1016/j.jbiomech.2014.04.041

R. M. Murray, A Mathematical Introduction to Robotic Manipulation, 1994.

P. D. Neuhaus, J. H. Noorden, T. J. Craig, T. Torres, J. Kirschbaum et al., Design and evaluation of Mina: A robotic orthosis for paraplegics, 2011 IEEE International Conference on Rehabilitation Robotics, pp.1-8, 2011.
DOI : 10.1109/ICORR.2011.5975468

Q. Nguyen, X. Da, J. W. Grizzle, and K. Sreenath, Dynamic walking on stepping stones with gait library and control barrier, Workshop on Algorithimic Foundations of Robotics (WAFR), submitted, 2016.
DOI : 10.1109/cdc.2016.7798370

K. Nishiwaki and S. Kagami, Strategies for adjusting the ZMP reference trajectory for maintaining balance in humanoid walking, 2010 IEEE International Conference on Robotics and Automation, pp.4230-4236, 2010.
DOI : 10.1109/ROBOT.2010.5510002

R. Olfati-saber, Nonlinear Control of Underactuated Mechanical Systems with Application to Robotics and Aerospace Vehicles, 2001.

H. Olsson, K. J. Åström, M. Gäfvert, C. Canudas-de-wit, and P. Lischinsky, Friction Models and Friction Compensation, European Journal of Control, vol.4, issue.3, p.176, 1998.
DOI : 10.1016/S0947-3580(98)70113-X

N. Beresford and . Parlett, The Symmetric Eigenvalue Problem, 1998.

H. Nijmeijer, P. Van-zutven, and D. Kostic, Foot placement for planar bipeds with point feet, IEEE ICRA, 2012.

F. Plestan, J. W. Grizzle, E. R. Westervelt, and G. Abba, Stable walking of a 7-dof biped robot, IEEE Transactions on Robotics and Automation, vol.19, issue.4, pp.653-668, 2003.
DOI : 10.1109/TRA.2003.814514

L. Praly, Applications de Poincaré, Solutions périodiques et Moyennisation (Notes de cours), 2006.

J. E. Pratt and R. Tedrake, Velocity-Based Stability Margins for Fast Bipedal Walking, pp.299-324, 2006.
DOI : 10.1007/978-3-540-36119-0_14
URL : http://groups.csail.mit.edu/robotics-center/public_papers/Pratt05.pdf

J. Pratt, C. Chew, A. Torres, P. Dilworth, and G. Pratt, Virtual Model Control: An Intuitive Approach for Bipedal Locomotion, The International Journal of Robotics Research, vol.20, issue.2, pp.129-143, 2001.
DOI : 10.1109/70.88120

M. Raibert, Legged Robots That Balance, IEEE Expert, vol.1, issue.4, 1986.
DOI : 10.1109/MEX.1986.4307016

M. Raibert, K. Blankespoor, G. Nelson, and R. Playter, BigDog, the Rough-Terrain Quadruped Robot, Proceedings of the 17th World Congress, pp.10823-10825, 2008.
DOI : 10.3182/20080706-5-KR-1001.01833
URL : http://web.unair.ac.id/admin/file/f_7773_bigdog.pdf

H. Razavi, A. M. Bloch, C. Chevallereau, and J. W. Grizzle, Symmetry in legged locomotion: a new method for designing stable periodic gaits, Autonomous Robots, vol.21, issue.3, 2016.
DOI : 10.1109/TRO.2004.838030
URL : https://hal.archives-ouvertes.fr/hal-01398837

J. Reher, E. A. Cousineau, A. Hereid, C. M. Hubicki, and A. D. Ames, Realizing dynamic and efficient bipedal locomotion on the humanoid robot DURUS, 2016 IEEE International Conference on Robotics and Automation (ICRA), pp.1794-1801, 2016.
DOI : 10.1109/ICRA.2016.7487325

. Rewalk, Rewalk website, 2016.

M. Reyhanoglu, A. Van-der-schaft, N. H. Mcclamroch, and I. Kolmanovsky, Dynamics and control of a class of underactuated mechanical systems, IEEE Transactions on Automatic Control, vol.44, issue.9, pp.1663-1671, 1999.
DOI : 10.1109/9.788533

S. Rezazadeh, C. Hubicki, M. Jones, A. Peekema, J. Van-why et al., Spring-Mass Walking With ATRIAS in 3D: Robust Gait Control Spanning Zero to 4.3 KPH on a Heavily Underactuated Bipedal Robot, Volume 1: Adaptive and Intelligent Systems Control; Advances in Control Design Methods; Advances in Non-Linear and Optimal Control; Advances in Robotics; Advances in Wind Energy Systems; Aerospace Applications; Aerospace Power Optimization; Assistive Robotics; Automotive 2: Hybrid Electric Vehicles; Automotive 3: Internal Combustion Engines; Automotive Engine Control; Battery Management; Bio Engineering Applications; Biomed and Neural Systems; Connected Vehicles; Control of Robotic Systems, 2015.
DOI : 10.1115/DSCC2015-9899

A. Saito, K. Sekiguchi, and M. Sampei, Exact linearization by time scale transformation based on relative degree structure of single-input nonlinear systems, 49th IEEE Conference on Decision and Control (CDC), pp.5408-5413, 2010.
DOI : 10.1109/CDC.2010.5717669

M. Sampei and K. Furuta, On time scaling for nonlinear systems: Application to linearization, IEEE Transactions on Automatic Control, vol.31, issue.5, pp.459-462, 1986.
DOI : 10.1109/TAC.1986.1104290

R. Goebel-ricardo, G. Sanfelice, and A. R. Teel, Hybrid Dynamical Systems: Modeling, Stability, and Robustness, 2012.

A. Sano and J. Furusho, Realization of natural dynamic walking using the angular momentum information, Proceedings., IEEE International Conference on Robotics and Automation, pp.1476-1481, 1990.
DOI : 10.1109/ROBOT.1990.126214

J. B. Saunders, V. T. Inman, and H. D. Eberhart, THE MAJOR DETERMINANTS IN NORMAL AND PATHOLOGICAL GAIT, The Journal of Bone & Joint Surgery, vol.35, issue.3, pp.543-558, 1953.
DOI : 10.2106/00004623-195335030-00003

N. Saunders, N. Swilling, B. Billings, L. Palyter, and M. Raibert, Petman : A humanoid robot for testing chemical protective clothing, 2012.

R. Sepulchre, M. Jankovi?, and P. V. Kokotovic, Constructive nonlinear control. Communications and control engineering, 1997.
DOI : 10.1007/978-1-4471-0967-9
URL : http://orbi.ulg.ac.be/bitstream/2268/75104/1/SJKb97.pdf

B. Shen, J. Li, F. Bai, and C. M. Chew, Development and control of a lower extremity assistive device (lead) for gait rehabilitation, Rehabilitation Robotics (ICORR), 2013 IEEE International Conference on, pp.1-6, 2013.

M. W. Spong, Partial feedback linearization of underactuated mechanical systems In Intelligent Robots and Systems '94Advanced Robotic Systems and the Real World', IROS '94, Proceedings of the IEEE/RSJ/GI International Conference on, pp.314-321, 1994.

K. Sreenath, H. Park, I. Poulakakis, and J. W. Grizzle, A Compliant Hybrid Zero Dynamics Controller for Stable, Efficient and Fast Bipedal Walking on MABEL, The International Journal of Robotics Research, vol.7, issue.7, pp.1170-1193, 2011.
DOI : 10.1007/s10514-008-9096-5

T. Sugihara and Y. Nakamura, Whole-body cooperative balancing of humanoid robot using cog jacobian, Intelligent Robots and Systems IEEE/RSJ International Conference on, 2002.

J. Swevers, W. Verdonck, and J. Schutter, Dynamic Model Identification for Industrial Robots, IEEE Control Systems, vol.27, issue.5, pp.58-71, 2007.
DOI : 10.1109/MCS.2007.904659

T. Swift, A. B. Zoss, K. Strausser, M. Rosa, H. Kazerooni et al., Powered lower extremity orthotic and method of operation, 2013.

T. Takenaka, T. Matsumoto, and T. Yoshiike, Real time motion generation and control for biped robot -1st report: Walking gait pattern generation, IEEERSJ International Conference on Intelligent Robots and Systems, pp.1084-1091, 2009.
DOI : 10.1109/iros.2009.5354662

D. Tlalolini, Y. Aoustin, and C. Chevallereau, Design of a walking cyclic gait with single support phases and impacts for the locomotor system of a thirteen-link 3D biped using the parametric optimization, Multibody System Dynamics, vol.15, issue.1, pp.33-56, 2010.
DOI : 10.1007/978-3-642-83006-8
URL : https://hal.archives-ouvertes.fr/hal-00794667

E. Todorov, T. Erez, and Y. Tassa, Mujoco: A physics engine for modelbased control, 2012 IEEE/RSJ International Conference on Intelligent Robots and Systems, pp.5026-5033, 2012.

. Pieter-van-zutven, Control and identification of bipedal humanoid robots: Stability Analysis and Experiments, 2014.

D. J. Villarreal, H. A. Poonawala, and R. D. Gregg, A Robust Parameterization of Human Gait Patterns Across Phase-Shifting Perturbations, IEEE Transactions on Neural Systems and Rehabilitation Engineering, vol.25, issue.3, pp.1-1, 2016.
DOI : 10.1109/TNSRE.2016.2569019

M. Vukobratovic, ZERO-MOMENT POINT ??? THIRTY FIVE YEARS OF ITS LIFE, International Journal of Humanoid Robotics, vol.3, issue.01, 2004.
DOI : 10.1016/0094-114X(96)00023-7

M. Vukobratovic, D. Hristic, and Z. Stojiljkovic, Development of active anthropomorphic exoskeletons, Medical & Biological Engineering, vol.15, issue.1, pp.66-80, 1974.
DOI : 10.1109/T-ED.1969.16559

M. W. Spong, Modeling and Control of Elastic Joint Robots, Journal of Dynamic Systems, Measurement, and Control, vol.109, issue.4, pp.310-318, 1986.
DOI : 10.1115/1.3143860

I. W. Park, J. Y. Kim, and J. H. Oh, Online Biped Walking Pattern Generation for Humanoid Robot KHR-3(KAIST Humanoid Robot - 3: HUBO), 2006 6th IEEE-RAS International Conference on Humanoid Robots, pp.398-403, 2006.
DOI : 10.1109/ICHR.2006.321303

S. Wang, L. Wang, C. Meijneke, E. Van-asseldonk, T. Hoellinger et al., Design and Control of the MINDWALKER Exoskeleton, IEEE Transactions on Neural Systems and Rehabilitation Engineering, vol.23, issue.2, pp.277-286, 2015.
DOI : 10.1109/TNSRE.2014.2365697

T. Wang and C. Chevallereau, A new control law for a 3D biped robot based on regulation of the zero moment point and joint path, 2010 10th IEEE-RAS International Conference on Humanoid Robots, pp.27-32, 2010.
DOI : 10.1109/ICHR.2010.5686295

T. Wang, C. Chevallereau, and C. Rengifo, Walking and steering control for a 3D biped robot considering ground contact and stability, Robotics and Autonomous Systems, vol.60, issue.7, pp.962-977, 2012.
DOI : 10.1016/j.robot.2012.02.007
URL : https://hal.archives-ouvertes.fr/hal-00794617

E. R. Westervelt, J. W. Grizzle, and C. Chevallereau, Feedback control of dynamic bipedal robot locomotion. taylor & francis/crc, 2007.
URL : https://hal.archives-ouvertes.fr/hal-01702841

P. Wieber, R. Tedrake, and S. Kuindersma, Modeling and Control of Legged Robots, pp.1203-1234
DOI : 10.1177/02783640122067570

D. A. Winter, Biomechanics and Motor Control of Human Movement, 2009.
DOI : 10.1002/9780470549148

M. Wisse, S. H. Collins, and A. Ruina, A three-dimensional passive-dynamic walking robot with two legs and knees, IJRR, vol.20, issue.7, pp.607-615, 2001.

A. Young and D. Ferris, State of the Art and Future Directions for Lower Limb Robotic Exoskeletons, IEEE Transactions on Neural Systems and Rehabilitation Engineering, vol.25, issue.2, pp.1-1, 2016.
DOI : 10.1109/TNSRE.2016.2521160

H. H. Zhao, W. L. Ma, A. D. Ames, and M. B. Zeagler, Human-inspired multi-contact locomotion with AMBER2, 2014 ACM/IEEE International Conference on Cyber-Physical Systems (ICCPS), pp.199-210, 2014.
DOI : 10.1109/ICCPS.2014.6843723