Author: Karl Hyldgaard-Jensen (editor); Arne Zettersten (editor); 1984, København> Symposium on Lexicography <2 (editor); Københavns Universitet (editor)
Author: B. Zagalak (editor); W. Friedrich (editor); 1979, Zürich> European Symposium on Vitamin B 12 and Intrinsic Factor <3 (editor); Universität <Zürich> (editor)