@article{RM_1967_22_2_a23,
     author = {E. A. Fadeeva},
     title = {On the {Cauchy} problem for a~linear hyperbolic equation of first order with operator coefficients},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     year = {1967},
     volume = {22},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1967_22_2_a23/}
}