Reference

C. L. Schardl, Jih Shiou Liu, jr, J. F. White, Raphael A. Finkel, Zhiqiang An, Malcolm R. Siegel (1991): Molecular phylogenetic relationships of nonpathogenic grass mycosymbionts and clavicpitaceous plant pathogens. – Österreichische Botanische Zeitschrift = Plant Systematics and Evolution – 178: 27 - 41.