Theißen, U. (2007) “Names of the Daisy Bellis perennis in Bulgarian and Its Neighboring Languages – Etymological and Naming Theory Aspects”, Zeitschrift für Balkanologie, 43(1). Available at: https://www.zeitschrift-fuer-balkanologie.de/index.php/zfb/article/view/108 (Accessed: 17 October 2026).