SKOLEM, T. Remarks on Proofs by Cyclotomic Formulas of Reciprocity Laws for Power Residues. MATHEMATICA SCANDINAVICA, [S. l.], v. 9, p. 229–242, 1961. DOI: 10.7146/math.scand.a-10637. Disponível em: https://www.mscand.dk/article/view/10637. Acesso em: 3 may. 2024.