Não informado. (1995). Phytologia Balcanica. Bulgarian Academy of Science, Institute of Biodiversity and Ecosystem Research.
Chicago-Zitierstil (17. Ausg.)Não informado. Phytologia Balcanica. Sofia: Bulgarian Academy of Science, Institute of Biodiversity and Ecosystem Research, 1995.
MLA-Zitierstil (8. Ausg.)Não informado. Phytologia Balcanica. Bulgarian Academy of Science, Institute of Biodiversity and Ecosystem Research, 1995.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.