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100   $a20020821d1961----km-y0itay50------ba
101 0 $aeng
105   $aa-------001yy
200 1 $aRadio waves in the ionosphere$ethe mathematical theory of the reflection of radio waves from stratified ionised layers$fK. G. Budden
210   $aCambridge$cUniversity Press$d1961
215   $a542 p.$cill.$d24 cm
610 0 $aPropagazione ionosferica delle onde radio
676   $a621.384'11
700  1$aBudden,$bK. G.$g<Kenneth George ;$f1915- >$027118
801  0$aIT$bUNINA$gRICA$2UNIMARC
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959   $aDINEL
996   $aRadio waves in the ionosphere$9330582
997   $aUNINA