AssanovaA. T., BakirovaE. A., and KadirbayevaZh. M. “On the Unique Solvability of a nonlocal boundary-Value Problem for Systems of Loaded Hyperbolic Equations With impulsive actions”. Ukrains’kyi Matematychnyi Zhurnal 69, no. 8 (August 25, 2017): 1011-1029. Accessed December 22, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/1755.