1. Three steps for best quality hops made in Germany;Biendl;Hopfen-rundschau International,2012
2. A review of polyphenolic antioxidants in hops, brewing and beer;Buggey;The Brewer International,2001
3. Hop aroma: character impact compounds found in beer, methods of formation of individual compounds;Deinzer,1994
4. Hop polyphenols – do more than just cause turbidity in beer;Forster;Hopfen-rundschau International,1999
5. Water soluble hop flavor precursors and their role in beer flavor;Goldstein,1999