INGRAO, Pietro; ROSSANDA, Rossana. Die neuen Widersprüche. PROKLA. Journal of Critical Social Science, Berlin, DE, v. 25, n. 100, p. 409–430, 1995. DOI: 10.32387/prokla.v25i100.952. Disponível em: https://prokla.de/index.php/PROKLA/article/view/952. Acesso em: 19 may. 2024.