@article{IVM_2001_4_a7,
     author = {N. M. Ratiner},
     title = {On the application of degree theory to the study of an oblique derivative problem},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {43--52},
     publisher = {mathdoc},
     number = {4},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2001_4_a7/}
}