KOSHLYAKOV, V. N. Generalized Euler equations in quaternions. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 46, n. 10, p. 1414–1416, 1994. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5623. Acesso em: 14 apr. 2025.