@article{MZM_2018_103_6_a2,
     author = {G. A. Grigoryan},
     title = {Stability {Criterion} for {Systems} of {Two} {First-Order} {Linear} {Ordinary} {Differential} {Equations}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {831--840},
     publisher = {mathdoc},
     volume = {103},
     number = {6},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2018_103_6_a2/}
}