Leninskaia "Iskra" istoriia sozdaniı︠a︡ i rasprostraneniı︠a︡ 1900-1902
Stepanov, Vladlen.
Tarnovskiĭ, Konstantin.
Wiegel, Karl.
Moskva Kniga Leipzig FEB Kachbuchverlag
1981
Iskra (Geneva, Switzerland)