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@article{MZM_1973_14_1_a6, author = {E. M. Chirka}, title = {Approximation by polynomials on star-shaped subsets of $C_n$}, journal = {Matemati\v{c}eskie zametki}, pages = {55--60}, publisher = {mathdoc}, volume = {14}, number = {1}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1973_14_1_a6/} }
E. M. Chirka. Approximation by polynomials on star-shaped subsets of $C_n$. Matematičeskie zametki, Tome 14 (1973) no. 1, pp. 55-60. http://geodesic.mathdoc.fr/item/MZM_1973_14_1_a6/