@article{DE_1970_6_3_a13,
     author = {Yu. A. Dement'ev},
     title = {The representability of boundary value problems in the form of systems of section-problems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {525--530},
     publisher = {mathdoc},
     volume = {6},
     number = {3},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1970_6_3_a13/}
}