@article {ClLi2011,
    author = {Claesson, Anders and Linusson, Svante},
     title = {{$n!$} matchings, {$n!$} posets},
   journal = {Proc. Amer. Math. Soc.},
  fjournal = {Proceedings of the American Mathematical Society},
    volume = {139},
      year = {2011},
    number = {2},
     pages = {435--449},
      issn = {0002-9939},
       doi = {10.1090/S0002-9939-2010-10678-0},
       url = {https://doi.org/10.1090/S0002-9939-2010-10678-0},
}