@Article{dmtcs/AlbertLLV15-321avoiding,
  author     = {Michael H. Albert and Marie{-}Louise Lackner and Martin Lackner and Vincent Vatter},
  title      = {The Complexity of Pattern Matching for 321-Avoiding and Skew-Merged Permutations},
  journal    = {{Discrete Mathematics and Theoretical Computer Science}},
  year       = {2016},
  volume     = {{vol. 18 no. 2, Permutation Patterns 2015}},
}