@article{FPM_2016_21_2_a3,
     author = {K. A. Vyatkina and A. N. Panov},
     title = {$U$-projectors and fields of $U$-invariants},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {133--144},
     publisher = {mathdoc},
     volume = {21},
     number = {2},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2016_21_2_a3/}
}