@book{bhlpg31093496, title = {Historia naturalis bulgarica }, volume = {v.5 (1995)}, url = {https://www.biodiversitylibrary.org/page/31093496}, publisher = {Bulgarska akademiia na naukite}, author = {Bŭlgarska akademii︠a︡ na naukite. }, year = {1995}, pages = {Page 29}, }