000 00308nam a2200121Ia 4500
008 250409s9999 xx 000 0 und d
020 _a81-224-0090-6
082 _a4
_bLEV
100 _aLevy, Leon S.
245 0 _aDiscrete structures of computer science
260 _aVidhyanagar
_bTMH
_c2006
365 _a235
999 _c254529
_d254529