@article{DAN_1976_231_5_a8,
     author = {M. G. Krein and I. E. Ovcharenko},
     title = {On generalized resolvents and resolvent matrices of positive {Hermitian} operators},
     journal = {Doklady Akademii Nauk},
     pages = {1063--1066},
     publisher = {mathdoc},
     volume = {231},
     number = {5},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1976_231_5_a8/}
}