Carlos G. Fernandes Vasco Furtado Alyssa Glass Deborah L. McGuinness Towards the generation of explanations for semantic web services in OWL-S. 2350-2351 2008 SAC http://doi.acm.org/10.1145/1363686.1364244 conf/sac/2008 db/conf/sac/sac2008.html#FernandesFGM08