000 00304nam a2200121Ia 4500
999 _c14684
_d14684
008 190711s9999 xx 000 0 und d
082 _a621.38411 F666
100 _aFolkestad. Kristen
245 0 _aIonospheric Radio Communications
260 _aNew York
_bPlenum
_c1968
300 _a26X17
942 _cBK