@article{IVM_2010_3_a4,
     author = {O. A. Repin and S. K. Kumykova},
     title = {A nonlocal problem for the {Bitsadze--Lykov} equation},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {28--35},
     publisher = {mathdoc},
     number = {3},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2010_3_a4/}
}