Stachowski, Kamil, and Olaf Stachowski. “Possibly Oriental Elements in Slavonic Folklore. Upiór ~ Wampir . 643”. In Essays in the History of Languages and Linguistics: Dedicated to Marek Stachowski on the Occasion of His 60th Birthday, edited by Michał Németh, Barbara Podolak, Mateusz Urban, and Dariusz R. Piwowarczyk. Poland: Księgarnia Akademicka Publishing, 2017. Accessed January 2, 2026. https://books.akademicka.pl/publishing/catalog/book/484/chapter/10819.