TIETÄVÄINEN, A. Note on Waring’s problem (mod p). Annales Fennici Mathematici, [S. l.], n. 554, 1973. DOI: 10.5186/aasfm.1973.554. Disponível em: https://afm.journal.fi/article/view/134210. Acesso em: 25 nov. 2024.