AIT EL MEKKI, A., & Henry de Frahan, B. (2000). Assessment of the Usefulness of GTAP for analysis reforms of the Common agricultural policy. Denmark. Statens Jordbrugs- og Fiskerioekonomiske Institut. Rapport, 116, 97-128. https://hdl.handle.net/2078.5/151505 (Original work published 2000)