Reference
Armin Hager, Georg Brunauer, Elfie Stocker-Wörgötter (2008): Investigations on secundary metabolites of lichens and lichen mycobionts in culture: production and biological activity – Sauteria-Schriftenreihe f. systematische Botanik, Floristik u. Geobotanik – 16: 323 - 324.