[1]
U. Goginava, “On the summability of double Walsh - Fourier series of functions of bounded generalized variation”, Ukr. Mat. Zhurn., vol. 64, no. 4, pp. 490–507, Apr. 2012, Accessed: Apr. 09, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/2591