References
^ Horst D. DornbuschClassic Beer Style Ser.: Bavarian Lager : Beerhall Helles History, Brewing Techniques, Recipes by Horst D. Dornbusch (2000, Paperback) ISBN 9780937381731 (revised Oct 2015)^ Dornbusch, Horst D. (2014). Bavarian Helles: History, Brewing Techniques, Recipes, Natl Book Network. BiggerBooks. ISBN 9780937381731 (revised Aug 2023)^ Bavarian Helles: History, Brewing Techniques, Recipes Indigo. ISBN 9780937381731 (revised Aug 2016)
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