00302nam a2200109Ia 450000500170000000800410001708200140005810000190007224500530009126000400014430000080018420260224040930.0260224s9999||||xx |||||||||||||| ||und||  a005.1 STA  aStallings, W.  0aISDN and broadband ISDN with frame relay and ATM  aNew Delhi : Pearson Educationc2004  a542