@article{DBLP:journals/dam/LungoNPR04,
  author    = {Alberto Del Lungo and
               Maurice Nivat and
               Renzo Pinzani and
               Simone Rinaldi},
  title     = {A bijection for the total area of parallelogram polyominoes},
  journal   = {Discrete Applied Mathematics},
  volume    = {144},
  number    = {3},
  year      = {2004},
  pages     = {291-302},
  ee        = {http://dx.doi.org/10.1016/j.dam.2003.11.007},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}