JOHANSSON, B. I. a high indices theorem without a nontrivial solution. MATHEMATICA SCANDINAVICA, [S. l.], v. 106, n. 1, p. 23–38, 2010. DOI: 10.7146/math.scand.a-15122. Disponível em: https://www.mscand.dk/article/view/15122. Acesso em: 20 apr. 2024.