Song, S.-M., & Waldron, K. (1987). Geometric Design of a Walking Machine for Optimal Mobility. Journal of Mechanisms, Transmissions, and Automation in Design. https://doi.org/10.1115/1.3258780
Song, Shin-Min, and Kenneth Waldron. 1987. “Geometric Design of a Walking Machine for Optimal Mobility”. Journal of Mechanisms, Transmissions, and Automation in Design. https://doi.org/10.1115/1.3258780.
Song, S.-M., and K. Waldron. Geometric Design of a Walking Machine for Optimal Mobility. Journal of Mechanisms, Transmissions, and Automation in Design, 1 Mar. 1987, doi:10.1115/1.3258780.