@article{DAN_1960_130_5_a9,
     author = {S. V. Uspenskii},
     title = {An imbedding theorem for {Sobolev's} classes of fractional order $W_p^r$},
     journal = {Doklady Akademii Nauk},
     pages = {992--993},
     publisher = {mathdoc},
     volume = {130},
     number = {5},
     year = {1960},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1960_130_5_a9/}
}