https://web.archive.org/web/20151125124744/http://www.mutemusicpromotion.de/cms/index.php?option=com_content&task=view&id=147&Itemid=99

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EHMANN, Wilhelm

https://web.archive.org/web/20070613191247/http://www.bautz.de/bbkl/e/ehmann_w.shtml

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