@conference {Garcia08-MNPSC, title = {QoS-Aware Semantic Service Selection: An Optimization Problem}, booktitle = {2008 IEEE Congress on Services - Part I (International Workshop on Methodologies for Non-Functional Properties in Services Computing, MNPSC)}, year = {2008}, pages = {384-388}, publisher = {IEEE Computer Society Press}, organization = {IEEE Computer Society Press}, address = {Honolulu, HI}, isbn = {978-0-7695-3286-8}, doi = {10.1109/SERVICES-1.2008.81}, url = {http://doi.ieeecomputersociety.org/10.1109/SERVICES-1.2008.81}, author = {Jos{\'e} Mar{\'\i}a Garc{\'\i}a and David Ruiz and Antonio Ruiz-Cort{\'e}s and Jos{\'e} Antonio Parejo} }