PPlanetary studiesPlanetary studiesde COSPAR. Plenary MeetingMateriasPlanetsCongressesIonospheresAtmospheresExplorationCometsEdiciones (1)Planetary studies (1987)Published for the Committee on Space Research by Pergamon Press · inglésMás obras de COSPAR. Plenary MeetingSSolar and middle atmosphere variabilitySolar and middle atmosphere variabilityAAustrian report to COSPARAustrian report to COSPARAAustrian report to COSPARAustrian report to COSPAR