@inproceedings{LLMC04Systematic,
  author = "Levendovszky, Tiham\'{e}r and Lengyel, L\'{a}szl\'{o} and Mezei, Gergely and Charaf, Hassan",
  title = "{A systematic approach to metamodeling environments and model transformation systems in VMTS}",
  booktitle = "International Workshop on Graph-Based Tools (GraBaTs)",
  address = "Rome, Italy",
  month = "Oct.",
  year = "2004",
  url = "http://tfs.cs.tu-berlin.de/grabats/Final04/levendovszky.pdf",
}