Zotova , O. E., and O. A. Goncharova. “Morphometric Indicators of Inflorescences of Some Crataegus L. Species Introduced to the Kola Peninsula in Siberia and the Far East”. Проблемы ботаники Южной Сибири и Монголии 19, no. 2 (October 6, 2020): 036-039. Accessed December 15, 2025. https://journal.asu.ru/bpssm/article/view/pbssm.2020071.