@article{IVM_1987_7_a7,
     author = {A. M. Romanovskaya},
     title = {The stability of the solutions of the {Cauchy} problem for a~second-order hyperbolic system with periodic coefficients},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {44--48},
     publisher = {mathdoc},
     number = {7},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1987_7_a7/}
}