@article{SLC_1994_32_a1,
     author = {Robert J. Clarke and Dominique Foata},
     title = {Eulerian {Calculus,} {IV:} {Specializations}},
     journal = {S\'eminaire lotharingien de combinatoire},
     publisher = {mathdoc},
     volume = {32},
     year = {1994},
     url = {http://geodesic.mathdoc.fr/item/SLC_1994_32_a1/}
}