00270nam a2200121Ia 4500008004100000020001500041041000800056100002300064245001900087250001000106260002400116300000800140211209s2006    xx            000 0 und d  a8131701042  aeng  aBETRSEKAS, DIMITRI  aDATA NETWORKS   a2 ed.  aASIAbPEARSONc2006  a556