@article{ZNSL_1976_56_a9,
     author = {Yu. A. Brudnyi},
     title = {On a~theorem of extension for one family of functional spaces},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {170--173},
     publisher = {mathdoc},
     volume = {56},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1976_56_a9/}
}