Regularization and chaotization of maximal attractors in the Sommerfeld–Kononenko non-ideal "spherical pendulum — electric motor" system with time delays. Neliniini Kolyvannya, [S. l.], v. 29, n. 2, 2026. DOI: 10.3842/nosc.v29i2.1218. Disponível em: https://nosc.imath.kiev.ua/index.php/nosc/article/view/1218. Acesso em: 9 oct. 2026.