@article{IVM_2013_12_a0,
     author = {A. R. Abdullaev and E. A. Skachkova},
     title = {A periodic boundary value problem for a~fourth-order differential equation},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {3--10},
     publisher = {mathdoc},
     number = {12},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2013_12_a0/}
}