NYUL, Gábor. Some thoughts concerning power sums. Teaching Mathematics and Computer Science, [S. l.], v. 13, n. 2, p. 303–308, 2015. DOI: 10.5485/TMCS.2015.0406. Disponível em: https://ojs.lib.unideb.hu/tmcs/article/view/14982. Acesso em: 27 sep. 2024.