@article{DAN_1977_233_4_a5,
     author = {V. M. Evtukhov},
     title = {On a nonlinear differential equation of second order},
     journal = {Doklady Akademii Nauk},
     pages = {531--534},
     publisher = {mathdoc},
     volume = {233},
     number = {4},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1977_233_4_a5/}
}