1. : ?Carpenter's Human Neuroanatomy.? Baltimore: Williams and Wilkins, 1996.
2. et al.: Benign and malignant tumors of the sacrum. In (ed): ?The Adult Spine Principles and Practice.? Philadelphia: Lippincott-Raven, 1997: 2367-2405.
3. Spinal chordomas
4. Vertebral tumors. In (ed): ?Imaging of the Spine and Spinal Cord.? New York: Raven Press, 1992: 445-487.
5. Radiotherapy for chordoma