@article{IM2_1983_20_3_a1,
     author = {S. M. Aseev},
     title = {Approximation of semicontinuous multivalued mappings by continuous ones},
     journal = {Izvestiya. Mathematics },
     pages = {435--448},
     publisher = {mathdoc},
     volume = {20},
     number = {3},
     year = {1983},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1983_20_3_a1/}
}