ZABOLOTNAYA, Lilia. Anna Tumarkin – the first female doctor of philosophy in Europe. Unknown pages of her life. Balcanica Posnaniensia. Acta et studia, [S. l.], v. 16, p. 139–146, 2009. DOI: 10.14746/bp.2009.16.12. Disponível em: https://pressto.amu.edu.pl/index.php/bp/article/view/52447. Acesso em: 4 aug. 2026.