Chełmno and the Holocaust: The History of Hitler's First Death Camp - Patrick Montague - Google Books

http://books.google.de/books?id=WvBRA0iGUjgC&dq=Patrick+Montague+Trenker&hl=de&source=gbs_navlinks_s

As the first extermination camp established by the Nazi regime and the prototype of the single-purpose death camps of Treblinka, Sobibor, and Belzec, the Chelmno death camp stands as a crucial but largely unexplored element of the Holocaust. This book is…