@article{IVM_1992_12_a9,
     author = {M. Yu. Yunusov},
     title = {Some boundary value problems that contain a~small parameter},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {67--79},
     publisher = {mathdoc},
     number = {12},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1992_12_a9/}
}