@article{RM_1965_20_5_a11,
     author = {S. R. Kogalovskii},
     title = {On {Birkhoff's} theorem},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     publisher = {mathdoc},
     volume = {20},
     number = {5},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1965_20_5_a11/}
}