LÉVY, G. The Fourier transform on 2-step Lie groups. Methods of Functional Analysis and Topology, [S. l.], v. 25, n. 3, p. 248–272, 2019. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/730. Acesso em: 13 dec. 2025.