1.
OKUYAMA Y, MIYAMOTO I. ON THE DOUBLE NORLUND SUMMABILITY OF DOUBLE FOURIER SERIES. Tamkang J. Math. [Internet]. 1996 Jun. 1 [cited 2024 May 8];27(2):133-44. Available from: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4351