Home › Authors › Universität Bern. Astronomical Institute 👤 Universität Bern. Astronomical Institute 2 books Books by Universität Bern. Astronomical Institute GPS-papers presented by the As GPS-papers presented by the Astronomical Institute of the University of Berne in the years 1988 and 1989 1990 GPS-papers presented by the As GPS-papers presented by the Astronomical Institute of the University of Berne in the years 1985 1985