von Ramona Teuber: Teuber, R. (Hrsg.): Geographical indications of origin as a tool of product differentiation, The case of coffee . Geographical indications of origin as a tool of product differentiation . 2008 Discussion papers . - Gießen : ZEU;33
[Volltext]

The Semantic Web - ISWC 2002, First International Semantic Web
Conference, Proceedings
. LNCS , 2002