@article{VSGTU_2011_2_a4,
     author = {A. A. Tokova},
     title = {On a~non-local boundary value problem for~loaded differential equation with characteristic form of~variable sign},
     journal = {Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences},
     pages = {40--45},
     publisher = {mathdoc},
     number = {2},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VSGTU_2011_2_a4/}
}