Goncharova, Oxana, Irina Lipponen, Elena Poloskova, and Olesya Zotova. 2021. “The Tree and Shrub Collections of the Polar-Alpine Botanical Garden-Institute”. Sibbaldia: The International Journal of Botanic Garden Horticulture, no. 19 (February): 97-115. https://doi.org/10.24823/Sibbaldia.2020.304.