NYAGAHAKWA, V.; HAGUMA, G. Non-Lebesgue measurability of finite unions of Vitali selectors related to different groups. MATHEMATICA SCANDINAVICA, [S. l.], v. 127, n. 3, 2021. DOI: 10.7146/math.scand.a-128969. Disponível em: https://www.mscand.dk/article/view/128969. Acesso em: 22 jan. 2022.