(Humulus lupulus L.): From cell to plant". Kyiv: Printeko, 2013. Nesvadba, Vladimír. "Development and tradition of Czech hop varietes". Žatec: Hop Research Institute, 2013. Neve, Ray A. "Hops". London: Chapman and Hall, 1991. Skomra, Urszula. "Polish hop cultivars". Puławy: Institute of Soil Science and Plant Cultivation, 2010. External links Purdue University article Botanical.com - a wealth of information on the Hop plant and its past and modern uses Armeniapedia.org - Medicinal uses of hops in Armenia 2005-10-25 Oregon State University Anti-cancer Compound in Beer Gaining Interest lupulusa Plants described in 1753 Taxa named by Carl Linnaeus