@article{FAA_1990_24_3_a1,
     author = {A. A. Kirillov and I. M. Pak},
     title = {Covariants of the symmetric group and its analogs in {Weyl} algebras},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {9--13},
     publisher = {mathdoc},
     volume = {24},
     number = {3},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1990_24_3_a1/}
}