000 00278nam a2200097Ia 4500
008 190719s9999 xx 000 0 und d
100 _aBernard Kalman/ Robert C Busby
245 0 _aDiscrete mathematical structure for computer science
260 _aNew Delhi
_bPHI
_c1992
942 _cBK
999 _c8282
_d8282