@article{DBLP:journals/vlc/BottoniGL08,
  author    = {Paolo Bottoni and Esther Guerra and Juan de Lara},
  title     = {Enforced generative patterns for the specification of the syntax and semantics of visual languages},
  journal   = {J. Vis. Lang. Comput.},
  volume    = {19},
  number    = {4},
  year      = {2008},
  pages     = {429-455},
  ee        = {http://dx.doi.org/10.1016/j.jvlc.2008.04.004},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}