Rumіantsev M. Н., N. Y. Vysotska, O. I. Borysenko, V. S. . Yushchyk, and Khromulіak O. I. “Current State and Productivity of Pine Stands in Kharkiv Region”. Forestry and Forest Melioration, no. 139, Dec. 2021, pp. 10-19, doi:10.33220/1026-3365.139.2021.10.