@inproceedings{KWV10,
  title = {Pure and Declarative Syntax Definition: Paradise Lost and Regained},
  author = {Lennart C. L. Kats and Eelco Visser and Guido Wachsmuth},
  year = {2010},
  booktitle = {Proceedings of Onward! 2010},
  publisher = {ACM},
}