@article{TIMM_2015_21_2_a11,
     author = {V. I. Maksimov},
     title = {On a modification of the extremal shift method for a second-order differential equation in a {Hilbert} space},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {150--159},
     publisher = {mathdoc},
     volume = {21},
     number = {2},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2015_21_2_a11/}
}