@article{VNGU_2008_8_4_a4,
     author = {G. V. Demidenko and Yu. Yu. Klevtsova},
     title = {Exponential {Dichotomy} of {Linear} {Systems} of {Differential} {Equations} with {Periodic} {Coefficients}},
     journal = {Sibirskij \v{z}urnal \v{c}istoj i prikladnoj matematiki},
     pages = {40--48},
     publisher = {mathdoc},
     volume = {8},
     number = {4},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VNGU_2008_8_4_a4/}
}