@incollection{RibaricSheidalGasevicetal.2011, author = {Marko Ribaric and Shahin Sheidal and Dragan Gasevic and Milan Milanovic and Adrian Giurca and Sergey Lukichev and Gerd Wagner}, title = {Modeling of Web Services using URML, R2ML and model transformations}, year = {2011}, }