1. Radiosurgery equipment: physical principles, precision, limitations;Holly,1993
2. The stereotaxic method and radiosurgery of the brain;Leksell;Acta Chir Scand,1951
3. General imaging modalities: Basic principles;Gorgulho,2009
4. A note on the treatment of acoustic neuromas;Leksell;Act Chir Scand,1971
5. Stereotaxic radiosurgery for cerebral arteriovenous malformations. Report of a case;Steiner;Acta Chir Scand,1972