@article{DAN_1991_317_3_a5,
     author = {P. E. Zhidkov},
     title = {On an invariant measure for a nonlinear {Schr\"odinger} equation},
     journal = {Doklady Akademii Nauk},
     pages = {543--546},
     publisher = {mathdoc},
     volume = {317},
     number = {3},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_317_3_a5/}
}