1.
Vereikina MB, Sharkovsky OM. Tracing of pseudotrajectories of dynamical systems and stability of prolongations of orbits. Ukr. Mat. Zhurn. [Internet]. 1997 Aug. 25 [cited 2025 Apr. 13];49(8):1016–1024. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/5096