KLIMCHUK, V. I. Gyroscope with variable moments of inertia in a cardan suspension on a movable base . Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 18, n. 2, p. 118–122, 1966. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8724. Acesso em: 6 dec. 2025.