Stepanets, O. I., Степанец, А. И., & Степанец, А. И. (1998). Approximation of $\bar {\psi} - integrals$−integrals of periodic functions by Fourier sums (small smoothness). Iof periodic functions by Fourier sums (small smoothness). I. Institute of Mathematics, NAS of Ukraine.
Чикаго стиль цитування (17-те видання)Stepanets, O. I., А. И Степанец, та А. И Степанец. Approximation of $\bar {\psi} - Integrals$−integrals of Periodic Functions by Fourier Sums (small Smoothness). Iof Periodic Functions by Fourier Sums (small Smoothness). I. Institute of Mathematics, NAS of Ukraine, 1998.
Стиль цитування MLA (8-ме видання)Stepanets, O. I., et al. Approximation of $\bar {\psi} - Integrals$−integrals of Periodic Functions by Fourier Sums (small Smoothness). Iof Periodic Functions by Fourier Sums (small Smoothness). I. Institute of Mathematics, NAS of Ukraine, 1998.