HERZOG, M. A note on the convergence of partial Szász-Mirakyan type operators. Annales Universitatis Paedagogicae Cracoviensis Studia Mathematica, [S. l.], v. 13, p. 45–50, 2014. Disponível em: https://studmath.uken.krakow.pl/article/view/13195. Acesso em: 29 oct. 2026.