@article{AA_1995_7_5_a4,
     author = {S. G. Merzlyakov},
     title = {On the closedness of the image of a~difference operator with constant differences},
     journal = {Algebra i analiz},
     pages = {182--203},
     publisher = {mathdoc},
     volume = {7},
     number = {5},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_1995_7_5_a4/}
}