Authors: Voser, Peter --- Kobe, Ursula --- Ettmüller, W. --- Hättenschwiler, P. --- Jutzeler, D. --- et al. Pleisch, E. --- Sauter, W. --- Schmid, P. --- Wildermuth, H.R. --- Stutz, H.P. --- Meier, C.
Year: 1995 Publisher: Zürich