Muratbekov, M., & Bayandiyev, Y. (2020). Existence and Maximal Regularity of Solutions in L2(R2) for a Hyperbolic Type Differential Equation with Quickly Growing Coefficients. Eurasian Mathematical Journal, 11(1), 95–100. https://doi.org/10.32523/2077-9879-2020-11-1-95-100