The following reference works are cited in this example problem:
Peña, E., Calvo, B., Martinez, M. A., & Doblare, M. (2007). An anisotropic visco-hyperelastic model for ligaments at finite strains. Formulation and computational aspects. International Journal of Solids and Structures 44, 760-778.
Pioletti, D. P. (1997). Viscoelastic Properties of Soft Tissues: Application to Knee Ligaments and Tendons. Ph.D. Thesis. École Polytechnique Fédérale de. Lausanne: Switzerland.
Pioletti, D., Rakotomanana, L. R., Benvenuti, J. F., & Leyvraz, P. F. (1998). Viscoelastic constitutive law in large deformations: Application to human knee ligaments and tendons. Journal of Biomechanics. 31, 753-757.
Song, Y. et al. A Three Dimensional Finite Element Model of the Human Anterior Cruciate Ligament: A Computational Analysis with Experimental Validation. Journal of Biomechanics 37 (2004): 383-390.
Limbert, G., Taylor, M., & Middleton, J. (2004). Three dimensional modeling of the human ACL: Simulation of passive knee flexion with a stressed and stress-free ACL. Journal of Biomechanics 37(11), 1723-1731.
Borotikar, B.S. (2009). Subject Specific Computational Models of the Knee to Predict Anterior Cruciate Ligament Injury. Ph.D. Thesis. Cleveland State University: USA.
Haghpanahi, M. & Jalayer, F. (August, 2008). Three-dimensional finite element analysis of the human ACL. Paper presented at the 1st WSEAS International Conference on Biomedical Electronics and Biomedical Informatics: Rhodes, Greece.
Erdemir, A. & Sibole, S. Open knee: A three-dimensional finite element representation of the knee joint. Computational Biomodeling Core and Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic: Cleveland, OH.