@misc{RM_1965_20_1_a6,
     title = {Iisidor {Pavlovich} {Natanson} (photo)},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     year = {1965},
     volume = {20},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1965_20_1_a6/}
}