@article{DAN_1992_322_2_a5,
     author = {Nguen Tien Khiem},
     title = {Conditions for the existence of a stationary solution of the {Fokker--Planck--Kolmogorov} equation in amplitude and phase variables for nonlinear oscillatory systems},
     journal = {Doklady Akademii Nauk},
     pages = {237--242},
     publisher = {mathdoc},
     volume = {322},
     number = {2},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1992_322_2_a5/}
}