AkselrodLiubov I.1908. “Karl Marx and German Classical Philosophy (Toward the 25th Anniversary of K. Marx's Death” [“Karl Marks i nemetskaia klassicheskaia filosofiia. (K 25-letnei godovshchine smerti K. Marksa)”]. In Na ocheredi, No. 1.http://sovlit.org/lia/Texts/LIA_Karl%20Marx%20and%20Classical%20German.pdf
2.
BrouéPierre. 2005. The German Revolution 1917-1923. Translated by J. Archer and edited by I. Birchall and B. Pearce with an introduction by E. D. Weitz. Leiden, The Netherlands: Brill.
3.
HardingNeil. 1977. Lenin's Political Thought. Vol. 1. London: Macmillan.
4.
KautskyKarl. 1908. Die historische Leistung von Karl Marx: Zum 25. Todestage des Meisters. Berlin: Buchhandlung Vorwärts.
LeninV. I.1977 (1905). “Two Tactics of Social Democracy in the Democratic Revolution.” In Collected Works, Vol. 9 (June-November). Moscow: Progress Publishers.
11.
Löwy, Michael. 2005. The Theory of Revolution in the Young Marx. Chicago, Illinois: Haymarket Books.
12.
PlekhanovGeorgi. 1976. “Twenty-Fifth Anniversary of the Death of Karl Marx.” In Selected Philosophical Works, Vol. 3. Moscow: Progress Publishers.