I. L. Bloshanskii, D. A. Grafov, “Equiconvergence of Expansions in Multiple Fourier Series and in Fourier Integrals with “Lacunary Sequences of Partial Sums””, Mat. Zametki, 99:2 (2016), 186–200; Math. Notes, 99:2 (2016), 196–209
2015
2.
D. A. Grafov, “Equiconvergence of expansions into triple trigonometric series and Fourier integral for continuous functions with a certain modulus of continuity”, Vestnik Moskov. Univ. Ser. 1. Mat. Mekh., 2015, no. 1, 25–33; Moscow University Mathematics Bulletin, 70:1 (2015), 24–32