Tashev, Alexander, Mykyta Peregrym, and Nikolai Tashev. “Silene Pendula (Caryophyllaceae), a New Alien Species for the Flora of Bulgaria”. Proceedings of the Bulgarian Academy of Sciences 75, no. 12 (December 23, 2022): 1742–1748. Accessed February 5, 2023. https://proceedings.bas.bg/index.php/cr/article/view/213.