1. Hemangioma extramedular produciendo paraplejias durante el embarazo;Balado;Arch Argent Neurol,1928
2. Blood vessel tumors of the spinal canal;Bucy;Surg Clin N Am,1932
3. L'ultrastructure des hémangioblastomes du système nerveux central;Castaigne;Rev. Neurol (Paris),1968
4. Tumours Arising from the Blood Vessels of the Brain;Cushing,1928
5. Intraspinal lipomas;Ehni,1945