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Lee, David V., John E. A. Bertram, Jennifer T. Anttonen, Ivo G. Ros, Sarah L. Harris, και Andrew A. Biewener. A Collisional Perspective On Quadrupedal Gait Dynamics. The Royal Society, 2011.

Lee, David V., et al. A Collisional Perspective On Quadrupedal Gait Dynamics. The Royal Society, 2011.