@article{DAN_1990_314_2_a2,
     author = {V. A. Derkach and M. M. Malamud},
     title = {The resolvent matrix of a {Hermitian} operator and the moment},
     journal = {Doklady Akademii Nauk},
     pages = {273--278},
     publisher = {mathdoc},
     volume = {314},
     number = {2},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1990_314_2_a2/}
}