000 00284nam a2200133Ia 4500
008 230321s9999 xx 000 0 und d
082 _bHER
100 _aHervo, Corine
245 0 _aInternet Getting Started
250 _a
260 _bFirewall
_c2004
300 _a175
942 _cBK
999 _c4886
_d4886