@article{TMF_1988_75_2_a15,
     author = {S. V. Lyudkovskii},
     title = {Compact relationships between invariants of the unitary groups~$U(n)$ and power sums},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {316--320},
     publisher = {mathdoc},
     volume = {75},
     number = {2},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1988_75_2_a15/}
}