If you are interested in the book "The Commander and the Bible Student" (Der Kommandant und die Bibelforscherin)) or the film "The Commander's Cook" (Die Köchin des Kommandanten), this link will take you to the WWW.MARCHIVUM.DE where you can order both. Currently only available in German language.
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Here you can see the trailer of the "The Commander's Cook" (Die Köchin des Kommandanten) . Just click on the link and you will be redirected automatically.