Institute of Marxism-Leninism of the Central Committee of the CPSU, "The Neutral Group of Social Democrats in Berlin," in Lenin, Collected Works: Volume 36: 1900-1923, Moscow, Progress Publishers, 1966; p. 624, fn. 82. Direct translation of the same note in Lenin, Polnoe sobranie sochinenii: Tom 46: Pisma 1893—1904. Moscow: Izdatel'stvo Politicheskoi Literatury, 1964; pg. 489, fn. 109.
