@article{DE_1983_19_11_a12,
     author = {I. B. Gotovtsev},
     title = {Geometric aspects of the method of differential relations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1915--1922},
     publisher = {mathdoc},
     volume = {19},
     number = {11},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1983_19_11_a12/}
}