@article{MZM_1996_60_1_a17,
     author = {Yu. T. Sil'chenko},
     title = {Cauchy problem for second-order linear differential equations with variable operator coefficients},
     journal = {Matemati\v{c}eskie zametki},
     pages = {149--152},
     publisher = {mathdoc},
     volume = {60},
     number = {1},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1996_60_1_a17/}
}