SosnitskiiS. P. “On the Hill Stability of Motion in the Three-Body Problem”. Ukrains’kyi Matematychnyi Zhurnal 60, no. 10 (October 25, 2008): 1434–1440. Accessed November 23, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/3258.