00351nam a22001457a 4500003001200000005001700012008004100029020000600070040001200076082001600088100001900104245004500123260001100168650002600179NUST - PNEC20170116180943.0150907b        xxu||||| |||| 00| 0 eng d  a-  cLIBRARY  a621.382 AGA  aAgarwal, D. C.  aSatellite communications cD. C. Agarwal  cc.1992  aCommunicationsxMScom