000 00256nam a2200121Ia 4500
100 _aPohlmann, Norbert
020 _a3-8266-0754-6
942 _cBK
245 _aFirewall systems
260 _aMITP, Verlag
_c2001
082 _a001.5436 Poh
300 _a544p
999 _c39101
_d39101