Sobkowiak, Sylwester, Hanna Zarzycka, and Ewa Zimnoch-Guzowska. “Effect of Deep Freezing of Phytophtora Infestans on Their Survival and Pathogenicity”. Plant Breeding and Seed Science 49 (June 20, 2004): 79–89. Accessed December 22, 2024. http://ojs.ihar.edu.pl/index.php/pbss/article/view/709.