Herzog, W., & Leonard, T. (1991). Validation of optimization models that estimate the forces exerted by synergistic muscles. Journal of biomechanics, 24(Suppl. 1), S. 31-39. doi:10.1016/0021-9290(91)90375-W

Herzog, W., and T.R Leonard. "Validation of Optimization Models That Estimate the Forces Exerted By Synergistic Muscles." Journal of Biomechanics 24, no. Suppl. 1 (1991): S. 31-39.

Herzog, W., and T.R Leonard. "Validation of Optimization Models That Estimate the Forces Exerted By Synergistic Muscles." Journal of Biomechanics 24.Suppl. 1 (1991): S. 31-39.