MATTILA, Pertti. An integral inequality for capacities. Mathematica Scandinavica, Berkeley, CA, United States, v. 53, p. 256–264, 1983. DOI: 10.7146/math.scand.a-12033. Disponível em: https://journals.msp.org/mscand/article/view/1634. Acesso em: 25 jul. 2026.