SIMIĆ, S.; VUORINEN, M.; WANG, G. Sharp Lipschitz Constants for the Distance Ratio Metric. MATHEMATICA SCANDINAVICA, [S. l.], v. 116, n. 1, p. 86–103, 2015. DOI: 10.7146/math.scand.a-20452. Disponível em: https://www.mscand.dk/article/view/20452. Acesso em: 26 apr. 2024.