JACOBSEN, Jacob. The Image of the Enveloping Algebra and Irreducibility of Induced Representations of Exponential Lie Groups. Mathematica Scandinavica, Berkeley, CA, United States, v. 77, p. 225–250, 1995. DOI: 10.7146/math.scand.a-12563. Disponível em: https://journals.msp.org/mscand/article/view/1110. Acesso em: 25 jul. 2026.