@article{DE_1987_23_2_a5,
     author = {A. M. Zverkin and V. N. Rozova},
     title = {Reciprocal controls and their applications},
     journal = {Differencialʹnye uravneni\^a},
     pages = {228--236},
     publisher = {mathdoc},
     volume = {23},
     number = {2},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1987_23_2_a5/}
}