@inproceedings{Kusel2013b,
   title = {{A Survey on Incremental Model Transformation Approaches}},
   author = {Angelika Kusel and J\"{u}rgen Etzlstorfer and Elisabeth Kapsammer and Philip Langer and Werner Retschitzegger and Johannes Sch\"{o}nb\"{o}ck and Wieland Schwinger and Manuel Wimmer},
   year = {2013},
   booktitle = {Proceedings of Models and Evolution Workshop (ME) @ MoDELS}
}								

@incollection{Kappel2012,
   title = {{Model transformation by-example: a survey of the first wave}},
   author = {Kappel Gerti and Langer Philip and Retschitzegger Werner and Schwinger Wieland and Wimmer Manuel},
   year = {2012},
   publisher = {Springer-Verlag},
   booktitle = {Conceptual Modelling and Its Theoretical Foundations},
   pages = {197--215},
   number = {7260},
   series = {Springer LNCS},
   isbn = {978-3-642-28278-2}
}								

@inproceedings{Brosch2009,
   title = {{An Example is Worth a Thousand Words: Composite Operation Modeling By-Example}},
   author = {Petra Brosch and Philip Langer and Martina Seidl and Konrad Wieland and Manuel Wimmer and Gerti Kappel and Werner Retschitzegger and Wieland Schwinger},
   year = {2009},
   publisher = {Springer-Verlag},
   booktitle = {Proceedings of the ACM/IEEE 12th International Conference on Model Driven Engineering Languages and Systems},
   pages = {271--285}
}