KRECH, G. On the rate of convergence theorem for the alternate Poisson integrals for Hermite and Laguerre expansions. Annales Universitatis Paedagogicae Cracoviensis Studia Mathematica, [S. l.], v. 4, p. 103–110, 2004. Disponível em: https://studmath.uken.krakow.pl/article/view/13312. Acesso em: 31 oct. 2026.