@article{DAN_1968_182_6_a5,
     author = {T. Kh. Enikeeva},
     title = {The {Cauchy} problem for a certain class of second order nonlinear differential equations in {Hilbert} space},
     journal = {Doklady Akademii Nauk},
     pages = {1264--1267},
     publisher = {mathdoc},
     volume = {182},
     number = {6},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1968_182_6_a5/}
}