ALLAHABI, F.; IBRAGIMOV, G. I.; KUCHKAROV, A. A Pursuit Problem in an Infinite System of Second-Order Differential Equations. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 65, n. 8, p. 1080–1091, 2013. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2491. Acesso em: 6 dec. 2025.