LYUBASHENKO, V. V. Operations and isomorphisms in a triangulated Hopf category. Methods of Functional Analysis and Topology, [S. l.], v. 5, n. 4, p. 37–53, 1999. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/106. Acesso em: 18 dec. 2025.