00458nam a2200145Ia 4500020001800000082001900018100001800037245001500055260003500070650001500105942000700120999001500127952008500142952008500227  a9780852263465  a621.3813 GUP/M  aGupta, K. C.  0aMicrowaves  bWiley EasternaNew Delhic1991  aMicrowaves  cBK  c1883d1883  001040708PHYaGBCTLbGBCTLcF31d2023-11-17g60.00o621.3813 GUP/Mp19067yBK  001040708PHYaGBCTLbGBCTLcF31d2024-02-08g60.00o621.3813 GUP/Mp19068yBK