1. 1
    Bulletin of the Academy of Sciences of the U.S.S.R. Izvestii︠a︡ Akademii nauk SSSR. Serii︠a︡ geofizicheskai︠a︡.
    Bulletin of the Academy of Sciences of the U.S.S.R. Известия Академии наук СССР. Серия геофизическая.
    Published 1957
    ...Pergamon Press,...
    Journal
  2. 2
    Published 1966
    ...Symposium Publications Division, Pergamon Press,...
    Conference Proceeding Book
  3. 3
    by Sopper, William E.
    Published 1967
    ...Symposium Publications Division, Pergamon Press,...
    Book