1. I tumori intramidollari;Guidetti;Lav Neuropsich,1964
2. [400 intraspinal space-narrowing processes: A clinical study];Niebeling;Zentrabl Neurochir,1978
3. Russell DS, Rubinstein LJ. Tumors of the meninges and related tissues. In Russel DS, Rubinstein W, editors. Tumors of the Nervous System, 5th edn. London: Edward Arnold; 1989. pp.499–532.
4. Intramedullary meningioma: Case report and review of the literature;Salvati;Surg Neurol,1992
5. Schiffer D, Fabiana A. Meningiomi. In Schiffer D, Fabiani A, editors. I Tumori Cerebrali. Biologia e Patologia. Istologia, Ultrastruttura e Diagnostica Neuro-oncologica. 2nd edn. Roma: Il Pensiero Scientifico Editore; 1975. pp.320–53 (Italian).