DOBROCHNA, Jankowska. Dr Erika Nagel (31.12.1943 - 24.07.1999). Folia Praehistorica Posnaniensia, [S. l.], v. 10, p. 398–400, 2018. DOI: 10.14746/fpp.2003.10.26. Disponível em: https://pressto.amu.edu.pl/index.php/fpp/article/view/15665. Acesso em: 16 kwi. 2024.