1. Die Alterverschiedenheiten der menschlichen Wirbelsäule;Aeby;Arch. Anat. Physiol. (Anat. Abst.),1879
2. The intervertebral discs;Beadle,1931
3. The osteohistology of the normal human vertebra;Bick;J. Mt. Sinai Hosp.,1952
4. The Intervertebral Disc;Bradford,1945
5. The pathophysiology of the intervertebral disc; anatomical, physiological and biochemical considerations;Brown,1969