@InProceedings{Song:2002:WRKUMLCSD,
  author =       "E. Song and Robert B. France and D. Kim and S. Ghosh",
  title =        "Using Roles for Pattern-Based Model Refactoring",
  pages =        "181--188",
  booktitle =    "Critical Systems Development with UML -- Proceedings of
                  the UML'02 workshop",
  editor =       "Jan J{\"u}rjens and Mar{\'\i}a Victoria Cengarle and
                  Eduardo B. Fernandez and Bernhard Rumpe and Robert
                  Sandner",
  publisher =    "Technische Universit{\"a}t M{\"u}nchen, Institut f{\"u}r
                  Informatik",
  year =         "2002",
}