@misc{MO_1998_2_a7,
     title = {That {Depends} on {Space}},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {75--81},
     year = {1998},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_1998_2_a7/}
}