The diameter structure of forests disturbed by the four-eyed fir bark beetle (Polygraph proximus Blandford)Andrey Vais, Valentina Popova, Alina Andronova, Pavel Mikhaylov, Victor Nemich and Artem NepovinnykhE3S Web Conf., 548 (2024) 07002DOI: https://doi.org/10.1051/e3sconf/202454807002