@article{MZM_2017_102_3_a11,
     author = {A. V. Vestyak and H. A. Matevossian},
     title = {On the {Behavior} of the {Solution} of the {Cauchy} {Problem} for an {Inhomogeneous} {Hyperbolic} {Equation} with {Periodic} {Coefficients}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {470--474},
     publisher = {mathdoc},
     volume = {102},
     number = {3},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2017_102_3_a11/}
}