Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1993_328_2_a2, author = {S. G. Merzlyakov}, title = {On the closedness of the range of a difference operator}, journal = {Doklady Akademii Nauk}, pages = {141--142}, publisher = {mathdoc}, volume = {328}, number = {2}, year = {1993}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1993_328_2_a2/} }
S. G. Merzlyakov. On the closedness of the range of a difference operator. Doklady Akademii Nauk, Tome 328 (1993) no. 2, pp. 141-142. http://geodesic.mathdoc.fr/item/DAN_1993_328_2_a2/