@article{DAN_1972_204_2_a9,
     author = {V. A. Pliss},
     title = {Rough sequences of linear periodic systems of differential equations},
     journal = {Doklady Akademii Nauk},
     pages = {295--297},
     publisher = {mathdoc},
     volume = {204},
     number = {2},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1972_204_2_a9/}
}