00435nam a2200133Ia 4500008004100000020001000041040001600051041001200067082001800079100001600097245012300113260004800236300001700284230917s9999||||xx |||||||||||||| ||und||  cPON10  e10480aMAIN  aEnglish  a537.534 B859R  aBudden, K G 0aRadio waves in the ionosphere: The mathematical theory of the reflection of radio waves from stratified ionized layers  aCambridgebCambridge University Pressc1966  axxiv, 542 p.