Structure and development of solar active regions Symposium no. 35 held in Budapest, Hungary, 4-8 September 1967
International Astronomical Union. Symposiu (35th : 1967 : Budapest, Hungary) Karl Otto Kiepenheuer (Karl Otto); International Astronomical Union
Dordrecht D. Reidel Publishing Company 1968
Localização: IAG - Inst. Ast. Geo. Ciên. Atmosféricas (520.6 I48st n.35e2 IAU Symp. )(Acessar)