@article{SM_1984_48_1_a12,
     author = {V. D. Stepanov},
     title = {On a~problem for integral convolution operators},
     journal = {Sbornik. Mathematics},
     pages = {211--221},
     publisher = {mathdoc},
     volume = {48},
     number = {1},
     year = {1984},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1984_48_1_a12/}
}