@article{DAN_1958_122_4_a1,
     author = {I. V. Gel'man},
     title = {Some functional spaces and their applications to variation problems},
     journal = {Doklady Akademii Nauk},
     pages = {547--550},
     publisher = {mathdoc},
     volume = {122},
     number = {4},
     year = {1958},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1958_122_4_a1/}
}