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Published: Hamburg : Hamburger Ed, 1998
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Published: Münster : Westfälisches Dampfboot, 2002
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Published: Düsseldorf : Media-Print Informationstechnik GmbH, (2003?)
Library:
NS Documentation Centre (Cologne)
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Published: Sankt Augustin : COMDOK, Verl.-Abt, 1993.
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