Khapugin A, Senchugova MA. The age structure of a Cypripedium guttatum (Orchidaceae) population in the Tyumen Region, Western Siberia. JWB [Internet]. 2022 Oct. 9 [cited 2024 Apr. 23];7(2):35-44. Available from: https://wildlife-biodiversity.com/index.php/jwb/article/view/277