@article{DE_1986_22_9_a13,
     author = {V. I. Sumin},
     title = {Stability of the existence of a global solution to the first boundary value problem for a controllable parabolic equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1587--1595},
     publisher = {mathdoc},
     volume = {22},
     number = {9},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1986_22_9_a13/}
}