000 00491nam a2200121Ia 4500
008 220201s1980 xx 000 0 eng d
082 _a510.7COM
245 0 _aComparative Studies of Mathematics Curricula - Change and Stability 1960-1980 :Proceedings of a Conference jointly organized by the Institute for the Didactics of Mathematics (IDM) and the Internation
260 _aHerausgeber
_bIDM
_c1980
440 _aMaterialien und Studien ;19
650 _aMATHEMATICS CURRICULA.
942 _2ddc
_cREF
999 _c71
_d71