@article{IIGUM_2017_22_a4,
     author = {A. S. Kazimirov},
     title = {On complexity of standard forms for multifunctions},
     journal = {The Bulletin of Irkutsk State University. Series Mathematics},
     pages = {63--70},
     publisher = {mathdoc},
     volume = {22},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIGUM_2017_22_a4/}
}