@article{DAN_1980_255_2_a14,
     author = {P. P. Kulish},
     title = {Multicomponent nonlinear {Schr\"odinger} equation with grading},
     journal = {Doklady Akademii Nauk},
     pages = {323--326},
     publisher = {mathdoc},
     volume = {255},
     number = {2},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_255_2_a14/}
}