Kopeček, Michal. “Peter C. Caldwell, Dictatorship, State Planning and Social Theory in the German Democratic Republic”. Dějiny – teorie – kritika, no. 1 (October 1, 2024): 144–152. Accessed April 20, 2025. https://medusa.is.cuni.cz/dejinyteoriekritika/article/view/4647.