1. Abbott, K. and Better, R.: Protrusions of thoracic intervertebral disks. Neurology 1956, 6, 1.
2. Arseni, C. and Nash, F. : Thoracic intervertebral disc protrusion. A clinical study. J. Neurosurg. 1960, 17, 418.
3. Austin, G. and Roth, J.: The spinal cord. Section III. The diagnosis and treatment of intervertebral disk disease. Thomas, Springfield 1961.
4. Epstein, J.: The syndrome of herniation of the lower thoracic intervertebral discs with nerve root and spinal cord compression. J. Neurosurg. 1954, 11, 525.
5. Frauchiger, E. and Fankhauser, R.: Vergleichende Neuropathologie des Menschen und der Tiere. Springer, Würzburg 1957.