1. The human brain spinal cord;Aristotle,1968
2. The discovery of ventricular passages;Bakay,1987
3. Traité des membranes en general et diverses membranes en particulier;Bichat,1800
4. Anatomia medullae spinalis et nervorum inde provenientium;Blaes;Amsterdam: J a Someren,1666
5. The Edwin Smith surgical papyrus;Breasted,1930