@article{AA_2001_13_4_a7,
     author = {Yu. R. Romanovskii},
     title = {Orbits of the symmetric group $S_4$ in its reducible representation},
     journal = {Algebra i analiz},
     pages = {156--173},
     publisher = {mathdoc},
     volume = {13},
     number = {4},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2001_13_4_a7/}
}