Rønning, Ole Martin (2020-03-31), "7. Apprentices of the World Revolution: Norwegian Communists at the Communist University of the National Minorities of the West (KUNMZ) and the International Lenin School, 1926–1937", The Russian Revolutions of 1917, Academic Studies Press, pp. 99–117, doi:10.1515/9781644690659-012, ISBN978-1-64469-065-9, S2CID241106788
semanticscholar.org
api.semanticscholar.org
Rønning, Ole Martin (2020-03-31), "7. Apprentices of the World Revolution: Norwegian Communists at the Communist University of the National Minorities of the West (KUNMZ) and the International Lenin School, 1926–1937", The Russian Revolutions of 1917, Academic Studies Press, pp. 99–117, doi:10.1515/9781644690659-012, ISBN978-1-64469-065-9, S2CID241106788