Não informado. (1998). Folia Geobotanica. Academy of Sciences of the Czech Republic, Institute of Botany.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Folia Geobotanica. Praha: Academy of Sciences of the Czech Republic, Institute of Botany, 1998.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Folia Geobotanica. Academy of Sciences of the Czech Republic, Institute of Botany, 1998.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.