SOPOTLIEVA, D.; APOSTOLOVA, I. Dry grassland vegetation in the transition zone between two biogeographic regions. Hacquetia, [S. l.], v. 13, n. 1, 2015. DOI: 10.2478/hacq-2014-0010. Disponível em: https://ojs.zrc-sazu.si/hacquetia/article/view/2831. Acesso em: 14 jul. 2025.