@article{ZNSL_1987_160_a18, author = {N. L. Gordeev}, title = {Invariants of symmetric and alternating groups}, journal = {Zapiski Nauchnykh Seminarov POMI}, pages = {201--210}, year = {1987}, volume = {160}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/ZNSL_1987_160_a18/} }