WAN, Lin; GUPTA, S. A Presentation of the Automorphism Group of the Two-Generator Free Metabelian and Nilpotent Group of Class $c$. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 54, n. 6, p. 771–779, 2002. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4115. Acesso em: 5 dec. 2025.