Saikkonen, K., P. Wäli, and M. Helander. “Occurence and Genetic Structure of Epichloe Festucae Endophytes in Wild Red Fescue Populations and Their Seed Progenies”. NZGA: Research and Practice Series, vol. 13, Jan. 2007, pp. 115-, doi:10.33584/rps.13.2006.3100.