Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1990_313_6_a12, author = {M. M. Malamud}, title = {Boundary value problems for {Hermitian} operators with gaps}, journal = {Doklady Akademii Nauk}, pages = {1335--1340}, publisher = {mathdoc}, volume = {313}, number = {6}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1990_313_6_a12/} }
M. M. Malamud. Boundary value problems for Hermitian operators with gaps. Doklady Akademii Nauk, Tome 313 (1990) no. 6, pp. 1335-1340. http://geodesic.mathdoc.fr/item/DAN_1990_313_6_a12/