- Author: H. G. Schlossberger (editor), H. Steinhart (editor), W. Kochen (editor), B. Linzen (editor), International Study Group for Tryptophan Research (editor)
- Language: English
- Year: 1984
- Author: David A. Bender (editor), Michael H. Joseph (editor), Walter Kochen (editor), Hans Steinhart (editor)
- Language: English
- Year: 1987