1. Cerebral cysts;Craig;J. A. M. A.,1934
2. Tumors Arising from the Blood Vessels of the Brain;Cushing,1928
3. The Principles of Neurological Surgery;Davis,1953
4. Notes on a series of brain tumors;Grant;J. A. M. A.,1953
5. Tumoren des Zentralnervensystems und seiner Hullen;Henschen,1955