2009-05-122009-05-1219930-13-031006-9urn:nbn:de:hebis:34-2009051227366http://hdl.handle.net/123456789/20090512273661058295 bytesapplication/pdfengUrheberrechtlich geschützthttps://rightsstatements.org/page/InC/1.0/510Mathematical modelling in mathematics education and instructionAufsatz