Sosnitskii, S.P. (1996) “On the instability of lagrange solutions in the three-body problem”, Ukrains’kyi Matematychnyi Zhurnal, 48(11), pp. 1580–1585. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/5214 (Accessed: 10 April 2025).