@article{MZM_1999_66_1_a6,
     author = {V. P. Derevenskii},
     title = {Systems of matrix linear differential equations of first order},
     journal = {Matemati\v{c}eskie zametki},
     pages = {63--75},
     publisher = {mathdoc},
     volume = {66},
     number = {1},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1999_66_1_a6/}
}