@misc{AL_2020_59_4_a6,
     title = {Sessions of the seminar {{\textquotedblleft}Algebra} i {Logika{\textquotedblright}}},
     journal = {Algebra i logika},
     pages = {507--509},
     publisher = {mathdoc},
     volume = {59},
     number = {4},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_2020_59_4_a6/}
}