The following reference works are cited in this example problem:
Paremer, A., Fumer, S., & Rice, D. P. (1992). Musculoskeletal Conditions in the United States (Ed. 1). American Academy of Orthopaedic Surgeons.
Gilbertson, L. G., Goel, V. K., Kong, W. Z., & Clausen, J. D. (1995). Finite Element Methods in Spine Biomechanics Research. Critical Reviews in Biomedical Engineering. 23(5-6), 411-473.
Bridwell, K. (May, 2009). Intervertebral Discs. Spine Universe.
Charnley, J. (1952). Imbibation of Fluid as a Cause of Herniation of the Nucleus Pulposus. Lancet. 6699, 124-127.
Argoubi, A. & Shirazi-Adl, A. (1996). Poroelastic Creep Response Analysis of a Lumbar Motion Segment in Compression. Journal of Biomechanics. 29(10), 1331-1339.
Ansys, Inc. gratefully acknowledges Materialise NV for providing the vertebral body geometry for this example problem.