@article{DAN_1960_135_5_a4,
     author = {L. A. Groza},
     title = {The asymptotic behavior of solutions of a second order linear differential equation in {Banach} space 
},
     journal = {Doklady Akademii Nauk},
     pages = {1038--1041},
     publisher = {mathdoc},
     volume = {135},
     number = {5},
     year = {1960},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1960_135_5_a4/}
}