000 00283nam a2200121Ia 4500
008 220120s9999||||xx |||||||||||||| ||und||
082 _a621.382 HAY
100 _aHaykin, Simon
_9679
245 0 _aCommunication systems
260 _c2004
300 _b0
650 _aCOMPUTER NETWORK
999 _c136760
_d136760