000 00295nam a2200133Ia 4500
008 230321s9999 xx 000 0 und d
082 _a001.642
_bDUB
100 _aDubois, Bruno
245 0 _aKeeping Ahead C++ Programm
250 _a
260 _bFirewall
_c2004
300 _a242
942 _cBK
999 _c4869
_d4869