Patrice Buche Juliette Dibie-Barthélemy Gaëlle Hignette Flexible Querying of Fuzzy RDF Annotations Using Fuzzy Conceptual Graphs. 133-146 2008 ICCS http://dx.doi.org/10.1007/978-3-540-70596-3_9 conf/iccs/2008 db/conf/iccs/iccs2008.html#BucheDH08