APA (7th ed.) Citation

Korneichuk, N. P., & Корнійчук, М. П. (1999). On the best approximation of functions of $n$ variables. Institute of Mathematics, NAS of Ukraine.

Chicago Style (17th ed.) Citation

Korneichuk, N. P., and М. П Корнійчук. On the Best Approximation of Functions of $n$ Variables. Institute of Mathematics, NAS of Ukraine, 1999.

MLA (8th ed.) Citation

Korneichuk, N. P., and М. П Корнійчук. On the Best Approximation of Functions of $n$ Variables. Institute of Mathematics, NAS of Ukraine, 1999.

Warning: These citations may not always be 100% accurate.