@article{10_1090_S1079_6762_07_00172_2,
     author = {Shareshian, John and Wachs, Michelle},
     title = {\ensuremath{\mathit{q}}-Eulerian polynomials: {Excedance} number and major index},
     journal = {Electronic research announcements of the American Mathematical Society},
     pages = {33--45},
     year = {2007},
     volume = {13},
     doi = {10.1090/S1079-6762-07-00172-2},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S1079-6762-07-00172-2/}
}