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@article{TM_1985_172_a24, author = {P. L. Ul'yanov}, title = {Superpositions of functions, and {Fourier} coefficients}, journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova}, pages = {338--348}, publisher = {mathdoc}, volume = {172}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TM_1985_172_a24/} }
P. L. Ul'yanov. Superpositions of functions, and Fourier coefficients. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Investigations on the theory of functions of several real variables and approximation of functons, Tome 172 (1985), pp. 338-348. http://geodesic.mathdoc.fr/item/TM_1985_172_a24/