Robert Hirschfeld/ Matt Christopher
(3)
Matt Christopher/ Robert Hirschfeld
(2)
Edited by Siegfried Kasper and Robert Hirschfeld
(1)
Erik Hirschfeld/ Andy Swash/ Robert Still
(1)
Jean Chaumine (EDT)/ James Hirschfeld (EDT)/ Robert Rolland (EDT)
(1)
Robert M. A. Hirschfeld M.D.
(1)