@article{DE_1975_11_5_a7,
     author = {V. P. Skripnik},
     title = {Stability of systems with a countable number of transformations of the argument},
     journal = {Differencialʹnye uravneni\^a},
     pages = {841--849},
     publisher = {mathdoc},
     volume = {11},
     number = {5},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1975_11_5_a7/}
}