@misc{IM2_2019_83_2_a0,
     title = {Congratulations to {Armen} {Glebovich} {Sergeev}},
     journal = {Izvestiya. Mathematics },
     pages = {197},
     publisher = {mathdoc},
     volume = {83},
     number = {2},
     year = {2019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2019_83_2_a0/}
}