This publication is cited in the following 3 articles:
D. B. Bazarkhanov, “Approximation of certain classes of smooth periodic functions of several variables by means of interpolation splines defined over a uniform net”, Math. Notes, 57:6 (1995), 646–648
A. K. Kushpel', “Sharp estimates of the widths of convolution classes”, Math. USSR-Izv., 33:3 (1989), 631–649