BLACKMORE, D.; PRYKARPATSKY, A. K.; SAMOILENKO, A. M. Hopf Algebras and Integrable Flows Related to the Heisenberg–Weil Coalgebra. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 56, n. 1, p. 88–96, 2004. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3730. Acesso em: 5 dec. 2025.