http://hdl.handle.net/123456789/3952 Sun, 05 Apr 2026 21:44:34 GMT 2026-04-05T21:44:34Z http://hdl.handle.net/123456789/3967 MATHEMATICS FOR PHYSICS AND PHYSICISTS WALTER APPEL Mon, 01 Jan 2007 00:00:00 GMT http://hdl.handle.net/123456789/3967 2007-01-01T00:00:00Z