KUNSTMANN, Heinrich. Óperenciás tenger – the Supposed “Sea beyond the Enns” in Hungarian Folk Tales as Topos from the Migration Period. Zeitschrift für Balkanologie, [S. l.], v. 40, n. 2, 2004. Disponível em: https://www.zeitschrift-fuer-balkanologie.de/index.php/zfb/article/view/36. Acesso em: 17 oct. 2026.