TodorovaS., and TzonevR. “Bromo Moesiacae-Stipetum Epilosae – a New Associa Tion from the Relict Mountai N Steppe Vegetation in South- Western Bulgaria”. Hacquetia, Vol. 9, no. 2, Aug. 2015, https://ojs.zrc-sazu.si/hacquetia/article/view/2893.