Talk:Kreuzberg (Tempelhofer Berge)

Bad ISBN
Because it is causing a Checkwiki error #72: "ISBN-10 with wrong checksum", I removed the ISBN from the entry:

Friedhelm Schmuck, Neutempelhofer Einsichten, Berlin: self-publishing, 32006, ISBN 3-00-015264-X.

I have tried unsuccessfully to locate the correct ISBN on the Internet. The document is self-published, which contributes to the difficulty of finding an ISBN. Two German online bookstores that list this document state "ISBN keine". Knife-in-the-drawer (talk) 09:52, 13 May 2015 (UTC)