Vernon-Roberts,
B., and Pirie,
C., 1977, “Degenerative Changes in the Intervertebral Discs of the Lumbar Spine and their Sequelae,” Rheumatol. Rehabil., 16, pp. 13–21.

Yasuma,
T., 1990, “Histological Changes in Aging Lumbar Intervertebral Discs. Their Role in Protrusions and Prolapses,” J. Bone Jt. Surg., 72A, No. 2, pp. 220–229.

Brickley-Parsons,
D., and Glimcher,
J., 1984, “Is the Chemistry of Collagen in Intervertebral Discs an Expression of Wolff’s Law? A Study of the Human Lumbar Spine,” Spine, 9, No. 2, pp. 148–163.

Lotz,
J. C., , 1998, “Compression-Induced Degeneration of the Intervertebral Disc: an in Vivo Mouse Model and Finite-Element Study. 1998 Volvo Award Winner in Biomechanical Studies,” Spine, 23, No. 23, pp. 2493–2506.

Shirazi-Adl,
A., Ahmed,
A. M., and Shrivastava,
S. C., 1986, “A Finite Element Study of a Lumbar Motion Segment Subjected to Pure Sagittal Plane Moments,” J. Biomech., 19, pp. 331–350.

Holm,
S., and Nachemson,
A., 1983, “Variations in the Nutrition of the Canine Intervertebral Disc Induced by Motion,” Spine, 8, No. 8, pp. 866–874.

Urban,
J. P. G., , 1982, “Nutrition of the Intervertebral Disc,” Clin. Orthop., 170, pp. 296–302.

Mow,
V. C., , 1980, “Biphasic Creep and Stress Relaxation of Articular Cartilage: Theory and Experiments,” ASME J. Biomech. Eng., 102, pp. 73–84.

Craine,
R. E., Green,
A. E., and Naghdi,
P. M., 1970, “A Mixture of Viscous Elastic Materials With Different Constituent Temperatures,” Q. J. Mech. Appl. Math., 23, No. 2, pp. 171–184.

Mills,
N., 1966, “Incompressible Mixtures of Newtonian Fluids,” Int. J. Eng. Sci., 4, pp. 97–112.

Armstrong,
C. G., and Mow,
V. C., 1982, “Variations in the Intrinsic Mechanical Properties of Human Articular Cartilage With Age, Degeneration and Water Content,” J. Bone Jt. Surg., 64A, pp. 88–94.

Kwan,
M. K., Lai,
M. W., and Mow,
V. C., 1990, “A Finite Deformation Theory for Cartilage and Other Soft Hydrated Connective Tissues—I. Equilibrium Results,” J. Biomech., 23, pp. 145–155.

Best,
B. A., , 1994, “Compressive Mechanical Properties of the Human Annulus Fibrosus and Their Relationship to Biochemical Composition,” Spine, 19, No. 2, pp. 212–221.

Iatridis,
J. C., , 1998, “Degeneration Affects the Anisotropic and Nonlinear Behaviors of Human Annulus Fibrosus in Compression,” J. Biomech., 31, pp. 535–544.

Truesdell, C., and Toupin, R. A., 1960, “The Classical Field Theories,” in: *Handbuch der Physik*, S. Flügge, ed., Springer-Verlag, Berlin.

Green,
A. E., and Naghdi,
P. M., 1968, “A Note on Mixtures,” Int. J. Eng. Sci., 6, pp. 631–635.

Green,
A. E., and Naghdi,
P. M., 1969, “On Basic Equations for Mixtures,” Q. J. Mech. Appl. Math., 22, pp. 427–438.

Bowen,
R. M., 1980, “Incompressible Porous Media Models by Use of the Theory of Mixtures,” Int. J. Eng. Sci., 18, pp. 1129–1148.

Müller,
I., 1968, “A Thermodynamic Theory of Mixtures of Fluids,” Arch. Ration. Mech. Anal., 28, pp. 1–39.

Ateshian,
G. A., , 1997, “Finite Deformation Biphasic Material Properties of Bovine Articular Cartilage From Confined Compression Experiments,” J. Biomech., 30, No. 11/12, pp. 1157–1164.

Holmes,
M. H., and Mow,
V. C., 1990, “The Nonlinear Characteristics of Soft Gels and Hydrated Connective Tissues in Ultrafiltration,” J. Biomech., 23, pp. 1145–1156.

Holmes,
M. H., 1986, “Finite Deformation of Soft Tissue: Analysis of a Mixture Model in Uni-axial Compression,” J. Biomech. Eng., 108, pp. 372–381.

Oomens,
C. W. J., van Campen,
D. H., and Grootenboer,
H. J., 1987, “A Mixture Approach to the Mechanics of Skin,” J. Biomech., 20, pp. 877–885.

Cohen, B., 1992, “Anisotropic Hydrated Soft Tissues in Finite Deformation and the Biomechanics of the Growth Plate,” Ph.D. dissertation, Columbia University.

Krishnaswamy,
S., and Batra,
R., 1997, “A Thermomechanical Theory of Solid-Fluid Mixtures,” Math. Mech. Solids, 2, pp. 143–151.

Atkin,
R. J., and Craine,
R. E., 1976, “Continuum Theories of Mixtures: Applications,” J. Inst. Math. Appl., 17, pp. 153–207.

Klisch, S. M., 1999, “A Continuum Mixture Theory With Internal Constraints for Annulus Fibrosus,” Ph.D. dissertation, University of California at Berkeley.

Atkin,
R. J., and Craine,
R. E., 1976, “Continuum Theories of Mixtures: Basic Theory and Historical Development,” Q. J. Mech. Appl. Math., 29, pp. 209–244.

Klisch, S. M., 2000, “Internally Constrained Mixtures of Elastic Materials,” Mathematics and Mechanics of Solids.

Shi,
J., Rajagopal,
K., and Wineman,
A., 1981, “Applications of the Theory of Interacting Continua to the Diffusion of a Fluid Through Non-linear Elastic Media,” Int. J. Eng. Sci., 19, pp. 871–879.

Thompson,
J. P., , 1990, “Preliminary Evaluation of a Scheme for Grading the Gross Morphology of the Human Intervertebral Disc,” Spine, 15, No. 5, pp. 411–415.

Madsen,
N. K., and Sincovec,
R. F., 1979, “Collocation Software for Partial Differential Equations,” ACM-TOMS, 5, No. 3, pp. 326–351.

Klisch,
S. M., and Lotz,
J. C., 1999, “Application of a Fiber-Reinforced Continuum Theory to Multiple Deformations of the Annulus Fibrosus,” J. Biomech., 32, No. 10, pp. 1027–1036.

Buschmann,
M. D., Soulhat,
J., Shirazi-Adl,
A., Jurvelin,
J. S., and Hunziker,
E. B., 1998, “Confined Compression of Articular Cartilage: Linearity in Ramp and Sinusoidal Tests and the Importance of Interdigitation and Incomplete Confinement,” J. Biomech., 31, pp. 171–178.

Rajagopal, K. R., and Tao, L., 1995, *Mechanics of Mixtures*, World Scientific, Singapore.

Reynolds,
R. A., and Humphrey,
J. D., 1998, “Steady Diffusion Within a Finitely Extended Mixture Slab,” Math. Mech. Solids, 3, pp. 147–167.

Klisch,
S. M., and Lotz,
J. C., 1999, “Application of a Fiber-Reinforced Continuum Theory to Multiple Deformations of the Annulus Fibrosus,” Adv. Bioeng. ASME, 39, p. 237.

Treloar, L. R. G., 1975, *The Physics of Rubber Elasticity*, 3rd ed., Clarendon Press, Oxford.