BÖRGER, Gergana. Courtesy Concepts using the Example of Forms of Address in German, Russian and Bulgarian Folk Tales. Zeitschrift für Balkanologie, [S. l.], v. 49, n. 1, 2013. Disponível em: https://www.zeitschrift-fuer-balkanologie.de/index.php/zfb/article/view/336. Acesso em: 16 oct. 2026.