Declaration of Rights of the Working and Exploited People https://marxistleninists.org/Lenin/DRWP18.html
Lenin: The International Socialist Congress in Stuttgart (Kalendar dlya vsekh, 1908) https://www.marxists.org/archive/lenin/works/1907/oct/00.htm
Franz Mehring 100. Todestag - 29. Januar 1919 http://ciml.250x.com/archive/communists/mehring/english/franz_mehring_1911_anglo-german_relations_english.html