Sosnitskii, S. P. “On the Gyroscopic Stabilization of Conservative Systems”. Ukrains’kyi Matematychnyi Zhurnal 48, no. 10 (October 25, 1996): 1402-1408. Accessed May 18, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/5225.