Patnaik, Lalit; et al. (October 2015). "Physical constraints, fundamental limits, and optimal locus of operating points for an inverted pendulum based actuated dynamic walker". Bioinspiration & Biomimetics. 10 (6): 064001. doi:10.1088/1748-3190/10/6/064001. PMID26502096. S2CID206102181.
Genin, J. J.; Willems, P. A.; Cavagna, G. A.; Lair, R. & Heglund, N. C. (2010). "Biomechanics of locomotion in Asian elephants". Journal of Experimental Biology. 213 (5): 694–706. doi:10.1242/jeb.035436. PMID20154184.
Graham, DA (1972). "A behavioural analysis of the temporal organisation of walking movements in the 1st instar and adult stick insect (Carausius morosus)". Journal of Comparative Physiology. 81: 23–52. doi:10.1007/BF00693548. S2CID38878595.
Patnaik, Lalit; et al. (October 2015). "Physical constraints, fundamental limits, and optimal locus of operating points for an inverted pendulum based actuated dynamic walker". Bioinspiration & Biomimetics. 10 (6): 064001. doi:10.1088/1748-3190/10/6/064001. PMID26502096. S2CID206102181.
Genin, J. J.; Willems, P. A.; Cavagna, G. A.; Lair, R. & Heglund, N. C. (2010). "Biomechanics of locomotion in Asian elephants". Journal of Experimental Biology. 213 (5): 694–706. doi:10.1242/jeb.035436. PMID20154184.
Patnaik, Lalit; et al. (October 2015). "Physical constraints, fundamental limits, and optimal locus of operating points for an inverted pendulum based actuated dynamic walker". Bioinspiration & Biomimetics. 10 (6): 064001. doi:10.1088/1748-3190/10/6/064001. PMID26502096. S2CID206102181.
Graham, DA (1972). "A behavioural analysis of the temporal organisation of walking movements in the 1st instar and adult stick insect (Carausius morosus)". Journal of Comparative Physiology. 81: 23–52. doi:10.1007/BF00693548. S2CID38878595.