Fen, F.T. and Karaca, I.Y. (2016) “Existence of positive solutions for nonlinear third-order $m$-point impulsive boundary value problems on time scales”, Ukrains’kyi Matematychnyi Zhurnal, 68(3), pp. 408–422. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/1848 (Accessed: 5 December 2025).