Pol︠i︡arnyĭ geofizicheskiĭ institut (Akademi︠i︡a nauk SSSR) & Shumilov, O. I. (1975). Kharakteristiki vspyshek solnechnykh kosmicheskikh lucheĭ. [s.n.].
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Lua MLA (8ú heag.)Pol︠i︡arnyĭ geofizicheskiĭ institut (Akademi︠i︡a nauk SSSR) agus O. I. Shumilov. Kharakteristiki Vspyshek Solnechnykh Kosmicheskikh Lucheĭ. [s.n.], 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.