Classificaton of the relict forest communites of Palla's Black Pine (Pinus nigra subsp. pallasiana) in Bulgaria - Tzonev, Rossen (Hacquetia, 2018)
Keywords: Balkan Peninsula; Balkanski polotok; cluster analyses; coniferous forests; gozdovi iglavcev; klastrske analize; sintaksonomija; syntaxonomy; vegetacija; vegetation