MILNES, Paul. Minimal and distal functions on semidirect products of groups II. Mathematica Scandinavica, Berkeley, CA, United States, v. 58, p. 215–226, 1986. DOI: 10.7146/math.scand.a-12141. Disponível em: https://journals.msp.org/mscand/article/view/1494. Acesso em: 25 jul. 2026.