edited by Dagmar Leucht, Helmut Madjar ; original author, Wolfgang Leucht ; foreword by Elizabeth Kelly-Fry ; [translated by Terry C. Telger]Georg Thieme Verlag1996
B.-J. Hackelöer, V. Duda, G. Lauth, with the collaboration of Jack Jellins ; foreword by Barbara Kelly-Fry ; [translation by T.C. Telger]Springer-Verlagc1988