GALAZ-LARIOS, M.; GARCIA-OLIVO, R.; LÓPEZ-BONILLA, J. Fejér and Dirichlet Kernels: Their Associated Polynomials. Journal of Scientific Research, [S. l.], v. 1, n. 2, p. 281–284, 2009. DOI: 10.3329/jsr.v1i2.2282. Disponível em: https://banglajol.info/index.php/JSR/article/view/2282. Acesso em: 18 may. 2022.