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Jaskula; և այլք: (2008). «A kinetic study on the isomerization of hop α-acids». J. Agric. Food Chem. 56 (15): 6408–6415. doi:10.1021/jf8004965. PMID18598038.
Stevens JF, Page JE (2004). «Xanthohumol and related prenylflavonoids from hops and beer: to your good health!». Phytochemistry. 65 (10): 1317–1330. doi:10.1016/j.phytochem.2004.04.025. PMID15231405.
