Malkov E, Bekov A, Momynov S, Beckmuhamedov I, Kurmangaliyev D, Mukametzhan A, Orynqul I. INVESTIGATION OF TWO FIXED CENTERS PROBLEM AND HENON-HEILES POTENTIAL BASED ON THE POINCARE SECTION. PMS [Интернет]. 4 февраль 2020 г. [цитируется по 18 январь 2025 г.];(1):55-61. доступно на: http://189185.vm7pq.group/physics-mathematics/article/view/392