@article{JIS_2005__8_3_a0,
     author = {Stanley,  Richard P.},
     title = {The descent set and connectivity set of a permutation},
     journal = {Journal of integer sequences},
     year = {2005},
     volume = {8},
     number = {3},
     zbl = {1101.05002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JIS_2005__8_3_a0/}
}