PETERSEN, G. M. The iteration of regular matrix methods of summation. Mathematica Scandinavica, Berkeley, CA, United States, v. 4, p. 276–280, 1956. DOI: 10.7146/math.scand.a-10476. Disponível em: https://journals.msp.org/mscand/article/view/2847. Acesso em: 25 jul. 2026.