00450nam a2200145Ia 4500003000900000008004100009040001600050080001900066245009100085260003300176300001000209650004100219650001900260700002500279IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a551.590.2bGAS 4aThe effect of disturbances of solar origin on communicationscedited by G. J. Gassmann  aLondonbPergamon Pressc1963  a349p.  aAstronomy and Astrophysics Thesaurus  aCommunications  aGassmann, G. J., ed.