@article{IVM_2011_5_a5,
     author = {K. B. Sabitov and I. A. Khadzhi},
     title = {The boundary-value problem for the {Lavrent'ev{\textendash}Bitsadze} equation with unknown right-hand side},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {44--52},
     year = {2011},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2011_5_a5/}
}