@misc{MO_2018_4_a7,
     title = {Publication information},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {61},
     year = {2018},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_2018_4_a7/}
}