NIKOLOV, I. D.; DIMITROV, M. A. Forest habitats on the territory of the National Park „Central Balkan" Bulgaria. Hacquetia, [S. l.], v. 22, n. 2, p. 215–245, 2023. Disponível em: https://ojs.zrc-sazu.si/hacquetia/article/view/11474. Acesso em: 11 may. 2024.