@inproceedings{8331,
  author       = {{Heckel, Reiko and Llabrés, Mercé and Ehrig, Hartmut and Orejas, Fernando}},
  booktitle    = {{Proceedings of workshop on Graph Transformation Systems (GraTra; satellite event of the ETAPS 2000), Berlin (Germany)}},
  title        = {{{Concurrency of Double-Pullback Graph Transitions}}},
  year         = {{2000}},
}