Ветчинникова, Л.В. and Титов, А.Ф. 2020. CURLY BIRCH: A VARIETY OR A SEPARATE SPECIES?. Lesnoy Zhurnal (Forestry Journal). 1 (Feb. 2020), 26–48. DOI:https://doi.org/10.37482/0536-1036-2020-1-26-48.