Michael H. Bernhard, The Origins of Democratization in Poland. Workers, Intellectuals, and Oppositional Politics, 1976-1980. Zeitschrift für Ostmitteleuropa-Forschung, [S. l.], v. 47, n. 4, p. 611–612, 1998. DOI: 10.25627/19984746782. Disponível em: https://openjournals.osmikon.de/zfo/article/view/6782. Acesso em: 16 sep. 2026.