000 00247nam a2200097Ia 4500
008 190719s9999 xx 000 0 und d
100 _aSeymour Lip'schutz
245 0 _aDiscrete Mathematics
260 _aN.D.
_bTata Mc. GrowHill
_c2006
942 _cBK
999 _c12637
_d12637