Zhuk, V. V. (1981). On the question of constants in direct theorems of approximation theory for differentiable functions.
ISO-690 (author-date, English)ZHUK, V. V., 1981. On the question of constants in direct theorems of approximation theory for differentiable functions. . 1 January 1981.
Modern Language Association 9th editionZhuk, V. V. On the Question of Constants in Direct Theorems of Approximation Theory for Differentiable Functions. Jan. 1981.
Mohr Siebeck - Recht (Deutsch - Österreich)Zhuk, V. V.: On the question of constants in direct theorems of approximation theory for differentiable functions, 1981,
Emerald - HarvardZhuk, V.V. (1981), “On the question of constants in direct theorems of approximation theory for differentiable functions”.
Warning: These citations may not always be 100% accurate.