1. WebRatio 5: an eclipse-based CASE tool for engineering web applications;Acerbis,2007
2. Engineering framework-specific modeling languages;Antkiewicz;IEEE Trans. Software Eng.,2009
3. Documentation at http://www.sei.cmu.edu/productlines/ppl/, accessed July 2010.
4. Component-Based Product Line Engineering with the UML;Atkinson,2001
5. 2, Towards a Precise Definition of the OMG/MDA Framework;Bezivin,2001