Não informado. (1998). Folia Geobotanica. Academy of Sciences of the Czech Republic, Institute of Botany.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Folia Geobotanica. Praha: Academy of Sciences of the Czech Republic, Institute of Botany, 1998.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Folia Geobotanica. Academy of Sciences of the Czech Republic, Institute of Botany, 1998.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.