00303pab a2200121 454500008004000000100001600040245003700056260000900093300001200102362001000114650002300124773003400147180718b2004   xxu||||| |||| 00| 0 eng d  aSridhar, V.  aNetwork externalities in telecom  c2004  ap.3586.  a7 Aug  aTelecommunications  aEconomic and Political Weekly