@article{RM_1970_25_2_a14,
     author = {V. G. Maz'ya},
     title = {The degenerate problem with oblique derivative},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     year = {1970},
     volume = {25},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1970_25_2_a14/}
}