Seefelder, Stefan, Anton Lutz, and Elisabeth Seigner. “Development of Molecular Markers for Powdery Mildew Resistance to Support Breeding for High Quality Hops”. BrewingScience 59, no. 5/6 (June 30, 2006): 100–104. Accessed May 30, 2026. https://brewingscience.de/index.php/brewingscience/article/view/515.