[1] M. Vukobratović, B. Borovac, Zero-moment point—thirty five years of its life, International journal of humanoid robotics, 1(01) (2004) 157-173.
[2] T. McGeer, Dynamics and control of bipedal locomotion, Journal of theoretical biology, 163(3) (1993) 277-314.
[3] T. McGeer, Passive dynamic walking, The international journal of robotics research, 9(2) (1990) 62-82.
[4] T. McGeer, Passive dynamic biped catalogue, 1991, in: Experimental Robotics II: The 2nd International Symposium, Toulouse, France, June 25–27 1991, Springer, 2005, pp. 463-490.
[5] A. Goswami, B. Espiau, A. Keramane, Limit cycles in a passive compass gait biped and passivity-mimicking control laws, Autonomous Robots, 4 (1997) 273-286.
[6] A. Goswami, B. Thuilot, B. Espiau, Compass-like biped robot part I: Stability and bifurcation of passive gaits, INRIA, 1996.
[7] S. Collins, A. Ruina, R. Tedrake, M. Wisse, Efficient bipedal robots based on passive-dynamic walkers, Science, 307(5712) (2005) 1082-1085.
[8] S.H. Collins, A. Ruina, R. Tedrake, M. Wisse, SUPPORTING ONLINE MATERIAL for Efficient bipedal robots based on passive-dynamic walkers, Mechanical Engineering, University of Michigan, (2005) 1-8.
[9] S. Gupta, A. Kumar, A brief review of dynamics and control of underactuated biped robots, Advanced Robotics, 31(12) (2017) 607-623.
[10] B. Beigzadeh, S.A. Razavi, Dynamic walking analysis of an underactuated biped robot with asymmetric structure, International Journal of Humanoid Robotics, 18(04) (2021) 2150014.
[11] K. Mitobe, N. Mori, K. Aida, Y. Nasu, Nonlinear feedback control of a biped walking robot, in: Proceedings of 1995 IEEE International Conference on Robotics and Automation, IEEE, 1995, pp. 2865-2870.
[12] J.W. Grizzle, G. Abba, F. Plestan, Asymptotically stable walking for biped robots: Analysis via systems with impulse effects, IEEE Transactions on automatic control, 46(1) (2001) 51-64.
[13] C. Chevallereau, Y. Aoustin, A. Formal'sky, Optimal walking trajectories for a biped, in: Proceedings of the First Workshop on Robot Motion and Control. RoMoCo'99 (Cat. No. 99EX353), IEEE, 1999, pp. 171-176.
[14] C. Chevallereau, J.W. Grizzle, C.-L. Shih, Asymptotically stable walking of a five-link underactuated 3-D bipedal robot, IEEE transactions on robotics, 25(1) (2009) 37-50.
[15] J.W. Grizzle, C. Chevallereau, Virtual constraints and hybrid zero dynamics for realizing underactuated bipedal locomotion, arXiv preprint arXiv:1706.01127, (2017).
[16] E. Westervelt, J. Grizzle, Design of asymptotically stable walking for a 5-link planar biped walker via optimization, in: Proceedings 2002 IEEE International Conference on Robotics and Automation (Cat. No. 02CH37292), IEEE, 2002, pp. 3117-3122.
[17] K. Sreenath, H.-W. Park, I. Poulakakis, J.W. Grizzle, A compliant hybrid zero dynamics controller for stable, efficient and fast bipedal walking on MABEL, The International Journal of Robotics Research, 30(9) (2011) 1170-1193.
[18] G.A. Castillo, B. Weng, A. Hereid, Z. Wang, W. Zhang, Reinforcement learning meets hybrid zero dynamics: A case study for rabbit, in: 2019 International Conference on Robotics and Automation (ICRA), IEEE, 2019, pp. 284-290.
[19] E.R. Westervelt, J.W. Grizzle, D.E. Koditschek, Hybrid zero dynamics of planar biped walkers, IEEE transactions on automatic control, 48(1) (2003) 42-56.
[20] E.R. Westervelt, G. Buche, J.W. Grizzle, Experimental validation of a framework for the design of controllers that induce stable walking in planar bipeds, The International Journal of Robotics Research, 23(6) (2004) 559-582.
[21] A. Goo, C.A. Laubscher, J.J. Wiebrecht, R.J. Farris, J.T. Sawicki, Hybrid Zero Dynamics Control for Gait Guidance of a Novel Adjustable Pediatric Lower-Limb Exoskeleton, Bioengineering, 9(5) (2022) 208.
[22] Y. Luo, U.J. Römer, A. Dyck, M. Zirkel, L. Zentner, A. Fidlin, Hybrid Zero Dynamics Control for Bipedal Walking with a Non-Instantaneous Double Support Phase, arXiv preprint arXiv:2303.05165, (2023).
[23] E.R. Westervelt, J.W. Grizzle, C. Chevallereau, J.H. Choi, B. Morris, Feedback control of dynamic bipedal robot locomotion, CRC press, 2018.
[24] B. Beigzadeh, M.R. Sabaapour, M.R.H. Yazdi, K. Raahemifar, From a 3d passive biped walker to a 3d passivity-based controlled robot, International Journal of Humanoid Robotics, 15(04) (2018) 1850009.
[25] B. Beigzadeh, M.R. Sabaapour, M.R. Hairi Yazdi, Passivity based turning control of 3D biped robot with asymptotical stability, Modares Mechanical Engineering, 16(4) (2016) 205-212.
[26] G.A. Castillo, B. Weng, W. Zhang, A. Hereid, Hybrid zero dynamics inspired feedback control policy design for 3d bipedal locomotion using reinforcement learning, in: 2020 IEEE International Conference on Robotics and Automation (ICRA), IEEE, 2020, pp. 8746-8752.
[27] K.J. Åström, B. Wittenmark, Computer-controlled systems: theory and design, Courier Corporation, 2013.
[28] J.B. Aldrich, Feedback Control of Dynamic Bipedal Robot Locomotion (by Westervelt, ER et al.; 2007)[Book Review], IEEE Transactions on Automatic Control, 53(6) (2008) 1570-1572.