1. H. Alfvén and G. Arrhenius,Evolution of the Solar System, NASA-Sp.345, Washington (1976).
2. J. Burn (ed.),Satellites of Planets [Russian translation], Mir, Moscow (1980).
3. Chemical Encyclopedic Dictionary [in Russian], Sov. Encycl., Moscow (1983).
4. Soviet Encyclopedic Dictionary [in Russian], Sov. Encycl., Moscow (1983).
5. Brief Handbook of Physicochemical Quantities [in Russian], Khimiya, Leningrad (1974).