Spencer B. Koehler

Integration of preoperative and intraoperative functional brain mapping in a frameless stereotactic environment for lesions near eloquent cortex. Technical note.

J. Tsuruda, J. Lewine, M. Heilbrun, 1999, Journal of neurosurgery.

Stereotactic localization and guidance using a machine vision technique.

M P Heilbrun, P McDonald, C Wiker, 1992, Stereotactic and functional neurosurgery.