@article{RM_1984_39_5_a3,
     author = {F. A. Gadzhiev},
     title = {The {Kolmogorov--S\l} upecki theorem for~a~three-dimensional sphere},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {57--61},
     publisher = {mathdoc},
     volume = {39},
     number = {5},
     year = {1984},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1984_39_5_a3/}
}