Kralj, D., Kač, M., Dolinar, M., Žolnir, M., & Kralj, S. (1998). Marker-assisted hop (Humulus lupulus L.) breeding: Biochemical markers for resistance to downy mildew (Pseudoperonospora humuli Miyabe et Takah) and hop damson aphid (Phorodon humuli Schrank). BrewingScience, 51(7/8), 111-119. https://brewingscience.de/index.php/brewingscience/article/view/706