@article{RM_1977_32_4_a16,
     author = {A. G. Fedotov},
     title = {Elliptic problems with a spectral parameter that occurs in the boundary conditions in polynomial form},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     publisher = {mathdoc},
     volume = {32},
     number = {4},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1977_32_4_a16/}
}