@article{Assanova_Dzhumabaev_2004, title={Periodic solutions of systems of hyperbolic equations bounded on a plane}, volume={56}, url={https://umj.imath.kiev.ua/index.php/umj/article/view/3777}, abstractNote={For a linear system of hyperbolic equations of the second order with two independent variables, we investigate the problem of the existence and uniqueness of a solution periodic in both variables and a solution periodic in one of the variables and bounded on a plane. By using the method of introduction of functional parameters, we obtain sufficient conditions for the unique solvability of the problems under consideration.}, number={4}, journal={Ukrainsâ€™kyi Matematychnyi Zhurnal}, author={Assanova, A. T. and Dzhumabaev, D. S.}, year={2004}, month={Apr.}, pages={562-572} }