@article{DAN_1988_298_2_a19,
     author = {W. I. Fushchych and I. A. Egorchenko},
     title = {Symmetric properties of complex-valued nonlinear wave equations},
     journal = {Doklady Akademii Nauk},
     pages = {347--351},
     publisher = {mathdoc},
     volume = {298},
     number = {2},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1988_298_2_a19/}
}