[1]
Mishra, A. and Mishra, V.N. 2026. Degree of Approximation of Functions $f(x,y)$ by Double Hausdorff Matrix Summability Method. Discontinuity, Nonlinearity, and Complexity. 11, 3 (Aug. 2026), 539–551. DOI:https://doi.org/10.5890/DNC.2022.09.014.