Anya Helene Bagge, Ralf Lämmel. Walk Your Tree Any Way You Want. In Keith Duddy, Gerti Kappel, editors, Theory and Practice of Model Transformations - 6th International Conference, ICMT 2013, Budapest, Hungary, June 18-19, 2013. Proceedings. Volume 7909 of Lecture Notes in Computer Science, pages 33-49, Springer, 2013. [doi]