@article{TIMM_2009_15_1_a17,
     author = {V. A. Yudin},
     title = {Invariants and {Chebyshev} polynomials},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {222--239},
     year = {2009},
     volume = {15},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2009_15_1_a17/}
}