Rubén Lara Dumitru Roman Axel Polleres Dieter Fensel A Conceptual Comparison of WSMO and OWL-S. 254-269 http://dx.doi.org/10.1007/978-3-540-30209-4_19 2004 conf/ecows/2004 ECOWS db/conf/ecows/ecows2004.html#LaraRPF04