Assanova, A. T., Bakirova, E. A., & Kadirbayeva, Z. M. (2017). On the unique solvability of a nonlocal boundary-value problem for systems of loaded hyperbolic equations with impulsive actions. Ukrains’kyi Matematychnyi Zhurnal, 69(8), 1011-1029. Retrieved from https://umj.imath.kiev.ua/index.php/umj/article/view/1755