Malkov Ewgenii, Bekov Askar, Momynov Serzhan, Beckmuhamedov Ilias., Kurmangaliev Duman, Mukametzhan Aidana, & Orynqul Iltefat. (2019). INVESTIGATION OF TWO FIXED CENTERS PROBLEM AND HENON-HEILES POTENTIAL BASED ON THE POINCARE SECTION. Известия НАН РК. Серия физико-математическая, (1), 55–61. извлечено от http://89.250.84.46/physics-mathematics/article/view/1161