@article{INTO_2021_191_a3,
     author = {Yu. F. Dolgii and R. I. Shevchenko},
     title = {Approximations in the stability problem for linear periodic systems with aftereffect},
     journal = {Itogi nauki i tehniki. Sovremenna\^a matematika i e\"e prilo\v{z}eni\^a. Temati\v{c}eskie obzory},
     pages = {29--37},
     publisher = {mathdoc},
     volume = {191},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTO_2021_191_a3/}
}