On the Behavior of Certain Artificial Grasslands on the Slopes of the Central Balkan Mountain in Bulgaria. Global Journal of Science Frontier Research, [S. l.], v. 23, n. D5, p. 1–10, 2024. DOI: 10.34257/GJSFRDVOL23IS5PG1. Disponível em: https://testing.journalofscience.org/index.php/GJSFR/article/view/102786. Acesso em: 4 feb. 2026.