Computer-assisted surgery. - Ludwig Adams; Werner Krybus; Dietrich Meyer-Ebrecht; Rainer Rüger; Joachim M. Gilsbach; Ralph Mösges; Georg Schlöndorff (IEEE Computer Graphics and Applications, 1990)

An Optical Navigator for Brain Surgery. - Ludwig Adams; Achim Knepper; Dietrich Meyer-Ebrecht; Rainer Rüger; Willem van der Brug (Computer, 1996)