00338nam a2200145Ia 450000100060000000800410000602000180004704000130006508200180007810000250009624500440012126000090016530000110017454600070018514164140402s9999    xx            000 0 und d  a81-203-1165-5  cPK-LaUMT  a 004.6bTAN-C  aTanenbaum, Andrew S.  aComputer networkscTanenbaum, Andrew S.  c1999  a813 p.  aEN