@inproceedings{swat-2011-tools,
  author    = {Hills, Mark and Klint, Paul and van der Storm, Tijs and Vinju, J. J.},
  title     = "{A Case of Visitor versus Interpreter Pattern}",
  booktitle = {Proceedings of the 49th International Conference on Objects, Models, Components, Patterns (TOOLS 2011)},
  year      = {2011},
  series    = {Lecture Notes in Computer Science},
  publisher = {Springer},
  volume    = {6705},
  pages     = {228--243},
  doi       = {10.1007/978-3-642-21952-8_17},
}