Title: On the 80th anniversary of the Second Congress of the RSDLP
Subjects: History, Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡. Sʺezd 1903 : Brussels, Belgium; London, England), Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡, Kommunisticheskai͡a partii͡a Sovetskogo Soi͡uza