Michel Sala Pierre Pompidor Danièle Hérin Gaël Isoird Help a Teacher in the Conception of a Course by using Semantic Information. 429-432 2004 conf/webi/2004 Web Intelligence http://doi.ieeecomputersociety.org/10.1109/WI.2004.77 db/conf/webi/webi2004.html#SalaPHI04