000 00315nam a2200133Ia 4500
008 221030s9999 xx 000 0 und d
041 _aEnglish
082 _a105.23
100 _aS. B. Gupta
245 0 _aDiscrete Mathematics & Structures
_cby S. B. Gupta
260 _c0
650 _aBE Mathematics
942 _cBK
999 _c8840
_d8840