@ARTICLE{MarTar:SW(2004),
  author  = {Adam Marcus and G{\'a}bor Tardos},
  title   = {Excluded Permutation Matrices and the {S}tanley--{W}ilf Conjecture},
  journal = {J. Combin. Theory Ser. A},
  year    = {2004},
  volume  = {107},
  number  = {1},
  pages   = {153--160}
}