1. Stereotaxic apparatus for intracerebral surgery;Leksell;Acta Chir Scand,1949
2. The stereotaxic method and radiosurgery of the brain;Leksell;Acta Chir Scand,1951
3. Computerized transverse axial tomography;Ambrose;Br J Radiol,1973
4. Physical aspects of stereotactic radiosurgery;Phillips,1993
5. Computer controlled stereotaxic radiotherapy system;Houdek;Int J Radiat Oncol Biol Phys,1992