Melody Siadaty Ty Mey Eap Jelena Jovanovic Dragan Gasevic Carlo Torniai Marek Hatala Semantic Technologies for Socially-Enhanced Context-Aware Mobile Learning. 413-418 2008 EC-TEL http://dx.doi.org/10.1007/978-3-540-87605-2_46 conf/ectel/2008 db/conf/ectel/ectel2008.html#SiadatyEJGTH08