Kunev, Georgi Iliev, in Rossen Tzonev. „New Data on the Ecological Peculiarities and the Distribution in Bulgaria of the Vulnerable Habitat F3.1d Balkan-Anatolian Submontane Genistoid Scrub from the European Red List of Habitats“. Hacquetia 18, no. 2 (julij 12, 2019). Pridobljeno april 17, 2025. https://ojs.zrc-sazu.si/hacquetia/article/view/7044.