@article{DAN_1990_314_1_a1,
     author = {G. R. Belitskii and V. A. Tkachenko},
     title = {Locally analytic solvability of multidimensional functional},
     journal = {Doklady Akademii Nauk},
     pages = {15--17},
     publisher = {mathdoc},
     volume = {314},
     number = {1},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1990_314_1_a1/}
}