(1)
Malkov, E.; Bekov, A.; Momynov, S.; Beckmuhamedov, I.; Kurmangaliyev, D.; Mukametzhan, A.; Orynqul, I. Poincare Sections for Two Fixed Centers Problem and Henon-Heiles Potential. Rec.Contr.Phys. 2020, 2020, 4-10.