DUBICKAS, A. On Waring’s problem for a prime modulus. Nonlinear Analysis: Modelling and Control, [S. l.], v. 4, n. 1, p. 23–30, 1999. DOI: 10.15388/NA.1999.4.0.15248. Disponível em: https://www.journals.vu.lt/nonlinear-analysis/article/view/15248.. Acesso em: 5 may. 2024.