000 00450 a2200157 4500
001 4393
010 _a9789087900106
090 _a4393
100 _a20170516 frey50
101 _aeng
102 _aNL
200 _aNew Mathematics education research and practice
_fPar jurgen Maasz and wolflgang Schloeglmann
210 _arotterdam
_csense publishers
_d2006
215 _a315p.
_d30cm
700 _4070
_aMAASZ
_bJürgen
701 _4070
_aSCHLOEGLMANN
_bWolfgang
099 _tMON