00321    a2200121   4500020001500000082001700015100001900032245003900051260004500090300002200135650002000157700002200177  a8178086557  a621.384bGAR  aGarg, Vijay K.  aPrinciples and applications of GSM  aSingaporebPearson educationc1999g1999  axxi, 481p.c24cm.  aRadio and radar  aWilkes, Joseph E.