@article{JAC_2005__21_2_a4,
     author = {Goupil, Alain and Poulalhon, Dominique and Schaeffer, Gilles},
     title = {Katriel's operators for products of conjugacy classes of $\frak S_n$},
     journal = {Journal of Algebraic Combinatorics},
     pages = {137--146},
     publisher = {mathdoc},
     volume = {21},
     number = {2},
     year = {2005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JAC_2005__21_2_a4/}
}