@techreport{tr-i4-03-03,
  author = {Clemente, Pedro J. and P{\'e}rez, Miguel A. and Lujan, Sergio and Reiser, Hans},
  institution = {Informatik 4, University of Erlangen-N{\"u}rnberg},
  number = {TR-I4-03-03},
  title = {13th Workshop for {PhD} Students in Object Oriented Programming: Summary and Accepted Papers},
  year = {2003}
}