SKORDEV, D. An algorithmic approach to some problems on the representation of natural numbers as sums without repetitions. Ann. Sofia Univ. Fac. Math. and Inf., [S. l.], v. 89, p. 89–99, 1997. Disponível em: https://stipendii.uni-sofia.bg/index.php/fmi/article/view/358. Acesso em: 21 nov. 2024.