Zabolotnaya, Lilia. “Anna Tumarkin – the First Female Doctor of Philosophy in Europe. Unknown Pages of Her Life”. Balcanica Posnaniensia. Acta et studia 16 (December 31, 2009): 139–146. Accessed August 4, 2026. https://pressto.amu.edu.pl/index.php/bp/article/view/52447.