@book{bhlpg30071300, title = {Flora of the U.S.S.R }, volume = {v.21 (1977)}, url = {https://www.biodiversitylibrary.org/page/30071300}, publisher = {Israel Program for Scientific Translations}, author = {Botanicheskiĭ institut (Akademii︠a︡ nauk SSSR) }, year = {1977}, pages = {Page 442}, } @book{bhlpg30071288, title = {Flora of the U.S.S.R }, volume = {v.21 (1977)}, url = {https://www.biodiversitylibrary.org/page/30071288}, publisher = {Israel Program for Scientific Translations}, author = {Botanicheskiĭ institut (Akademii︠a︡ nauk SSSR) }, year = {1977}, pages = {Page 430}, } @book{bhlpg30070857, title = {Flora of the U.S.S.R }, volume = {v.21 (1977)}, url = {https://www.biodiversitylibrary.org/page/30070857}, publisher = {Israel Program for Scientific Translations}, author = {Botanicheskiĭ institut (Akademii︠a︡ nauk SSSR) }, year = {1977}, }