In Feb. 1917 the name of the Imperatorskai︠a︡ akademii︠a︡ nauk was changed to Rossiĭskai︠a︡ akademii︠a︡ nauk and in July 1925, to Akademii︠a︡ nauk SSSR. In 1991 the name was changed back to Rossiĭskai︠a︡ akademii︠a︡ nauk. Works by these bodies are found under the name used at the time of publication.