A new occurrence of Catalan numbers: cap permutations

Adrien Boussicault, Veronica Guerrini. A new occurrence of Catalan numbers: cap permutations. Electronic Notes in Discrete Mathematics, 59:147-164, 2017. [doi]

@article{BoussicaultG17,
  title = {A new occurrence of Catalan numbers: cap permutations},
  author = {Adrien Boussicault and Veronica Guerrini},
  year = {2017},
  doi = {10.1016/j.endm.2017.05.011},
  url = {https://doi.org/10.1016/j.endm.2017.05.011},
  researchr = {https://researchr.org/publication/BoussicaultG17},
  cites = {0},
  citedby = {0},
  journal = {Electronic Notes in Discrete Mathematics},
  volume = {59},
  pages = {147-164},
}