000 00307nam a2200121Ia 4500
008 170912s9999 xx 000 0 und d
082 _a A G/M
100 _aA GROUP OF AUTHORS
245 0 _aMATHEMATICS
260 _bNATIONAL COUNCIL OF EDUCATION RESEARCH ANDTRAINING
_c1993
300 _a147
942 _cTB
999 _c30555
_d30555