Jurkowski, Andrzej, and Henryk Bujak. “A Search for 4 Specific Markers Linked to Pm3 Alleles for Resistance to Powdery Mildew (Blumeria Graminis) in Rye (Secale Cereale)”. Biological Letters, vol. 54, no. 1, June 2019, pp. 37-45, doi:10.2478/biolet-2019-0004.