Filippov, Alexey V., et al. “A Rapid Method for Evaluation of Partial Potato Resistance to Late Blight and of Aggressiveness of Phytophthora Infestans Isolates Originating from Different Regions”. Plant Breeding and Seed Science, vol. 50, Dec. 2004, pp. 29-41, http://ojs.ihar.edu.pl/index.php/pbss/article/view/687.