000 00492nam a2200145Ia 4500
008 231217s9999 xx 000 0 und d
041 _aEnglish
082 _a551.5 PIG;1 R
100 _aPiggott, W R. Beynon, W J G. Brown, G M.
245 0 _aMeasurement of ionosperic absorption part-II : IGY instruction manual the ionosphere
260 _c1957
_bPergamon Press
_aLondon
300 _a381
650 _aMeasurement,ionosperic,absorption,part-II,IGY,instruction,ionosphere
942 _cAA
999 _c192427
_d192427