Grevtsova, A.T., Vakulenko , T.B. and Novischenko , N.S. 2021. Introduction of the species of the genera Cotoneaster Medik. and × Sorbocotoneaster pozdnjakovii Pojark. from the Siberian flora to the Botanical Garden acad. A. V. Fomin of Taras Shevchenko National University of Kiev (message 3 – × Sorbocotoneaster pozd. Проблемы ботаники Южной Сибири и Монголии. 20, 1 (Sep. 2021), 140-146. DOI:https://doi.org/10.14258/pbssm.2021026.