@article{VMUMM_1984_2_a4,
     author = {O. N. Kolesnikov},
     title = {Sections of multivalued mappings},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {21--24},
     publisher = {mathdoc},
     number = {2},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1984_2_a4/}
}