1. Emission Factors Guide. Version 5.0. Emission Factors Calculation and Bibliographical Sources Used;ADEME,2007
2. Bruges to Build Beer Pipeline to Stop Traffic Ruining Locals' Lives;AFP,2014
3. Sustainability Report: Comparison between New Belgium and Budweiser Beer;Ali,2010
4. Annual Report 2013;Assobirra (Associazione degli Industriali della Birra e del Malto),2013
5. Siemens Technology Controls the Beer Pipeline in the Hacker Festival Tent;Becker,2014