[1]
A. H. M. Karazon and M. M. Amer, “(On Summability Of Double Fourier Series By (N,p,q,p ́,q ́ )(E,1,1”, JNSLAS, vol. 2, no. 4, pp. 40–25, Dec. 2018, doi: 10.26389/AJSRP.A250718.