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100   $a20020821d1976----km-y0itay50------ba
101 0 $aeng
105   $aa-------001yy
200 1 $aCommunications satellite systems$ean overview of the technology$fEdited by R. G. Gould, Y. F. Lum
210   $aNew York$cIEEE Press$dc1976
215   $a164 p.$cill.$d25 cm
610 0 $aSatelliti artificiali in telecomunicazioni
676   $a621.382
700  1$aGould,$bRichard G.$0185532
701  1$aLum,$bY. F.$0491634
801  0$aIT$bUNINA$gRICA$2UNIMARC
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952   $a10 E II 285$b9307$fDINEL
959   $aDINEL
996   $aCommunications satellite systems$9332258
997   $aUNINA