• Amstutz, C.A.; Bechrakis, N.E.; Foerster, M.H.; Heufelder, J.; Kowal, J.H.: Intraoperative Localization of Tantalum Markers for Proton Beam Radiation of Choroidal Melanoma by an Opto-Electronic Navigation System: A Novel Technique. International Journal of Radiation Oncology Biology Physics 82 (2012), p. 1361-1366

10.1016/j.ijrobp.2011.04.049