@article{10_37236_8223,
     author = {Jhon B. Caicedo and Victor H. Moll and Jos\'e L. Ram{\'\i}rez and Diego Villamizar},
     title = {Extensions of set partitions and permutations},
     journal = {The electronic journal of combinatorics},
     year = {2019},
     volume = {26},
     number = {2},
     doi = {10.37236/8223},
     zbl = {1439.11079},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/8223/}
}