000			00364nam a2200157Ia 4500
008			160615s9999 xx 000 0 und d
100			_aDAVIES(Kenneth)
245			_aIonosphoric radio propagation
260			_aNew York
260			_bDover publications
260			_c1966
300			_aiii p. + 470
942			_cBooks
999			_c9463 _d9463