@article{DAN_1984_275_4_a2,
     author = {A. I. Ibragimov and E. M. Landis},
     title = {Trichotomy of solutions of the {Neumann} problem for the {Laplace}},
     journal = {Doklady Akademii Nauk},
     pages = {783--786},
     publisher = {mathdoc},
     volume = {275},
     number = {4},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1984_275_4_a2/}
}