The bassoon: its history, construction, makers, players and music - Will Jansen - Google Books

http://books.google.de/books?id=r40IAQAAMAAJ&q=%22Bruno+Seidler-Winkler%22&dq=%22Bruno+Seidler-Winkler%22&hl=de&ei=HhPGTNifI4Pj4

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