@article{ZNSL_1974_47_a3,
     author = {V. P. Il'in},
     title = {On an integral representation of functions},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {67--72},
     year = {1974},
     volume = {47},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1974_47_a3/}
}