@article{10_37236_1993,
     author = {Joshua Sack and Henning \'Ulfarsson},
     title = {Refined inversion statistics on permutations},
     journal = {The electronic journal of combinatorics},
     year = {2012},
     volume = {19},
     number = {1},
     doi = {10.37236/1993},
     zbl = {1243.05013},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/1993/}
}