Zastavnyi, V. P., Заставный, В. П., & Заставный, В. П. (2003). Extension of a Function from the Exterior of an Interval to a Positive-Definite Function on the Entire Axis and an Approximation Characteristic of the Class $W_M^{r, β}$. Institute of Mathematics, NAS of Ukraine.
Чикаго стиль цитування (17-те видання)Zastavnyi, V. P., В. П Заставный, та В. П Заставный. Extension of a Function from the Exterior of an Interval to a Positive-Definite Function on the Entire Axis and an Approximation Characteristic of the Class $W_M^{r, β}$. Institute of Mathematics, NAS of Ukraine, 2003.
Стиль цитування MLA (8-ме видання)Zastavnyi, V. P., et al. Extension of a Function from the Exterior of an Interval to a Positive-Definite Function on the Entire Axis and an Approximation Characteristic of the Class $W_M^{r, β}$. Institute of Mathematics, NAS of Ukraine, 2003.