@article{VSGU_2015_3_a4,
     author = {R. M. Safina},
     title = {Keldysh problem for {Pulkin{\textquoteright}s} equation in a rectangular domain},
     journal = {Vestnik Samarskogo universiteta. Estestvennonau\v{c}na\^a seri\^a},
     pages = {53--63},
     publisher = {mathdoc},
     number = {3},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VSGU_2015_3_a4/}
}