000 00362nam a2200157Ia 4500
001 17163
008 170722s9999 xx 000 0 und d
100 _aStormer, Carl
245 _aPolar aurora /
260 _c1955.
490 _aInternational monographs on radio
653 _aAstronomy
653 _aMathematics
653 _aMeteor&comet
942 _cGEN
999 _c66818
_d66818