@article{TMF_2019_200_2_a6,
     author = {V. D. Lyakhovsky},
     title = {Chebyshev polynomials and the~proper decomposition of functions},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {259--268},
     year = {2019},
     volume = {200},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2019_200_2_a6/}
}