Fen, F. T., and I. Y. Karaca. 2016. “Existence of Positive Solutions for Nonlinear Third-Order $m$-Point Impulsive Boundary Value Problems on Time Scales”. Ukrains’kyi Matematychnyi Zhurnal 68 (3), 408-22. http://umj.imath.kiev.ua/index.php/umj/article/view/1848.