7Sawaya R, Bindal RK. Metastatic Brain Tumors. In:Kaya. AH,Law.ER Jr. BrainTumors. An Encyclopedic Approach. Edinburgh:Churchill Livngstone, 1995. 923-946
8Kihlstrom L, Karlsson B, Lindquist C. Gamma knife surgery for cerebral metastases,implication for survival basedon 16 year experience. Stereotact Funct,Neurosurg, 1993, 61(suppl 1):45
9Steiner L, Lindpuist C,Steiner M.Metastatic Brain Tumor, in Symon L et al(eds): Advances and Technical Standards in Neurosurg.Springer-Veriary Austria, 1992. 75-78
10Alexander M E, Loeffler J S. Radiosurgery for the Treatment of Intracranial Metastases. In;Alexander M E, Loffler J S,Lunsford L D(eds): Stereotactic Radiosurgery. McGraw-Hill New York, 1993.189-206