Mitusova , E. V. “Studying the Phenology of Cardiocrinum Cordatum Var. Glehnii Growing in the Vicinity of Yuzhno-Sakhalinsk”. Проблемы ботаники Южной Сибири и Монголии, Vol. 22, no. 1, July 2023, pp. 235-40, doi:10.14258/pbssm.2023045.