@misc{IM2_2020_84_1_a0,
     title = {Valerii {Vasil'evich} {Kozlov} (congratulation)},
     journal = {Izvestiya. Mathematics },
     pages = {1--2},
     publisher = {mathdoc},
     volume = {84},
     number = {1},
     year = {2020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2020_84_1_a0/}
}