Assembly, Special Committee on the Problem of Hungary, 1957 [PDF]. Gémes Andreas, James S. Amelang, Siegfried Beer (éditeurs) « International Releatons and
‘user-friendly’ new beer glass, 7 mars 2008, in Radio.cz (en) Pilsner Urquell Kvasnicový (Yeast beer), in Ratebeer.com. (en) Plzensky Prazdroj (SABMiller), in Ratebeer