@article{DAN_1961_140_1_a13,
     author = {Yu. I. Petunin},
     title = {A criterion for the reflexivity of a {Banach} space},
     journal = {Doklady Akademii Nauk},
     pages = {56--58},
     publisher = {mathdoc},
     volume = {140},
     number = {1},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1961_140_1_a13/}
}