@article{IM2_1981_16_3_a0,
     author = {V. I. Berdyshev},
     title = {Continuity of a~multivalued mapping connected with the problem of minimizing a~functional},
     journal = {Izvestiya. Mathematics},
     pages = {431--456},
     year = {1981},
     volume = {16},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1981_16_3_a0/}
}