@article{DAN_1988_298_5_a9, author = {B. P. Osilenker}, title = {A generalized shift operator and convolution structure for}, journal = {Doklady Akademii Nauk}, pages = {1072--1076}, publisher = {mathdoc}, volume = {298}, number = {5}, year = {1988}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1988_298_5_a9/} }