[1]
Karazon, A.H.M. and Amer, M.M. 2018. (On Summability Of Double Fourier Series By (N,p,q,p ́,q ́ )(E,1,1. Journal of natural sciences, life and applied sciences. 2, 4 (Dec. 2018), 40–25. DOI:https://doi.org/10.26389/AJSRP.A250718.