@article{MZM_1978_24_1_a7,
     author = {O. V. Epifanov},
     title = {The range of an operator of convolution type},
     journal = {Matemati\v{c}eskie zametki},
     pages = {63--72},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1978_24_1_a7/}
}