PEETRE, Jaak; THOMÉE, Vidar. On the Rate of Convergence for Discrete Initial-Value Problems. Mathematica Scandinavica, Berkeley, CA, United States, v. 21, p. 159–176, 1967. DOI: 10.7146/math.scand.a-10856. Disponível em: https://journals.msp.org/mscand/article/view/2468. Acesso em: 25 jul. 2026.