@article{MZM_1979_26_5_a6,
     author = {M. I. Gil'},
     title = {Estimation of the norm of the resolvent of a~completely continuous operator},
     journal = {Matemati\v{c}eskie zametki},
     pages = {713--717},
     publisher = {mathdoc},
     volume = {26},
     number = {5},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1979_26_5_a6/}
}