@article{SLC_2018_80B_a42,
     author = {Anders Claesson and Bjarki \'Ag\'ust Gu{\dh}mundsson},
     title = {Enumerating {Permutations} {Sortable} by k {Passes} {Through} a {Pop-Stack}},
     journal = {S\'eminaire lotharingien de combinatoire},
     publisher = {mathdoc},
     volume = {80B},
     year = {2018},
     url = {http://geodesic.mathdoc.fr/item/SLC_2018_80B_a42/}
}