Ljubenova, Marijana, and Ivan Bondev. “Aboveground Phytomass of the Linden-Turkey Oak Forest in Ludogorje (North-East Bulgaria)”. Macedonian Journal of Ecology and Environment 6, no. 1-2 (December 31, 1999): 3–10. Accessed December 28, 2024. http://mjee.org.mk/index.php/mjee/article/view/142.