Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1981_30_6_a6, author = {B. A. Kats}, title = {Boundary-value problems with infinite indices and non-one-to-one shifts}, journal = {Matemati\v{c}eskie zametki}, pages = {847--856}, publisher = {mathdoc}, volume = {30}, number = {6}, year = {1981}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1981_30_6_a6/} }
B. A. Kats. Boundary-value problems with infinite indices and non-one-to-one shifts. Matematičeskie zametki, Tome 30 (1981) no. 6, pp. 847-856. http://geodesic.mathdoc.fr/item/MZM_1981_30_6_a6/