?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Dang%2C+Duc+Hanh&rft.aulast=Dang&rft.aufirst=Duc+Hanh&rft.date=17+August+2012&rft.title=An+Approach+for+Quality+Assurance+of+Model+Transformations&rft.genre=proceeding