@article{DE_1975_11_4_a5,
     author = {V. A. Gustomesov},
     title = {A study of the relay sampled-data systems by the method of point mappings},
     journal = {Differencialʹnye uravneni\^a},
     pages = {645--658},
     publisher = {mathdoc},
     volume = {11},
     number = {4},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1975_11_4_a5/}
}