SINGH, S. N. ON THE GIBBS PHENOMENON FOR NORLUND METHOD OF SUMMABILITY. Caribbean Journal of Sciences and Technology , [S. l.], v. 1, n. 1, p. 166–171, 2013. Disponível em: https://www.caribjscitech.com/index.php/cjst/article/view/97. Acesso em: 26 aug. 2025.