Accuracy of a Navigation System for Computer-Aided Oral Implantology. - Wolfgang Birkfellner; Felix Wanschitz; Franz Watzinger; Klaus Huber; Michael Figl; Christian Schopper; Rudolf Hanel; Franz Kainberger; Joachim Kettenbach; Sanda Patruta; Rolf Ewers; Helmar Bergmann (MICCAI, 2000)