Ignatovich, Elena, and Pierre Walter. “Political Posters, the Soviet Enlightenment and the Construction of a Learning Society, 1917-1928”. European Journal for Research on the Education and Learning of Adults 13, no. 1 (November 11, 2021): 75–96. Accessed August 11, 2022. https://rela.ep.liu.se/article/view/3561.