@article{DE_1990_26_7_a4,
     author = {A. L. Domarkas and F. F. Ivanauskas},
     title = {Existence of solutions of a system of nonlinear {Schr\"odinger} equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1137--1147},
     publisher = {mathdoc},
     volume = {26},
     number = {7},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1990_26_7_a4/}
}