ZUO, Z.- fei; HUANG, Y.- min. Absolute normalized norms in R^2 and Heinz means constant. Topological Methods in Nonlinear Analysis, [S. l.], v. 60, n. 2, p. 475–490, 2022. DOI: 10.12775/TMNA.2022.003. Disponível em: https://apcz.umk.pl/TMNA/article/view/40184. Acesso em: 16 apr. 2024.