@article{IIGUM_2021_38_a6,
     author = {V. I. Panteleev and E. S. Taglasov},
     title = {On the lattice of $ES_I$-closed classes of multifunctions on two-elements set},
     journal = {The Bulletin of Irkutsk State University. Series Mathematics},
     pages = {96--111},
     publisher = {mathdoc},
     volume = {38},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIGUM_2021_38_a6/}
}