Czembor, Elżbieta, Ulf Feuerstein, and Grzegorz Żurek. “Powdery Mildew Resistance in Kentucky Bluegrass Ecotypes from Poland”. Plant Breeding and Seed Science 45, no. 2 (December 20, 2001): 21–31. Accessed December 22, 2024. http://ojs.ihar.edu.pl/index.php/pbss/article/view/794.