MooreP02'

@article{DBLP:journals/jct/MooreP02,
  author    = {Cristopher Moore and
               Igor Pak},
  title     = {Ribbon Tile Invariants from the Signed Area},
  journal   = {J. Comb. Theory, Ser. A},
  volume    = {98},
  number    = {1},
  year      = {2002},
  pages     = {1-16},
  ee        = {http://dx.doi.org/10.1006/jcta.2001.3208},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}