V. KUZMINA, Iuliia; P. SHOK, Nataliya. Richard Fronschtein: unknown facts of biography. Student years (1900–1907). History of Medicine, [S. l.], v. 4, n. 2, 2017. Disponível em: https://historymedjournal.com/HOM/index.php/medicine/article/view/170.. Acesso em: 9 apr. 2025.