[1]
Assenov, A., Vassilev, K., Padeshenko, H., Koulov, B., Ivanova, E. and Borisova, B. 2016. Research of the Biotope Diversity for the Purposes of Economic Valuation of Ecosystem Services in Chepelare Municipality (The Rhodopes Region of Bulgaria). European Journal of Sustainable Development. 5, 4 (Oct. 2016), 409. DOI:https://doi.org/10.14207/ejsd.2016.v5n4p409.