Sołtys-Lelek, Anna, and Oliіar Halyna. 2016. “The Species of the Genus Crataegus L. In the National Nature Park ‘Podilskyi Tovtry’ (Podolian Hills, Western Ukraine)”. Biodiversity: Research and Conservation 44 (December):25-34. https://doi.org/10.1515/biorc-2016-0019.