@article{DE_1979_15_11_a19,
     author = {R. \`E. Vinograd and Yu. I. Elefteriadi},
     title = {Attainability of the estimate in the freezing method},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2089--2092},
     publisher = {mathdoc},
     volume = {15},
     number = {11},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1979_15_11_a19/}
}