EHLERS, Widu-Wolfgang. Libertino patre nati. Hyperboreus, Bern, v. 20, n. 1-2, p. 274–278, 2015. DOI: 10.36950/hyperboreus.QDYA1898. Disponível em: https://judaica.ch/index.php/Hyperboreus/article/view/12653. Acesso em: 14 sep. 2025.