@article{IVM_1994_10_a6,
     author = {T. A. Osechkina},
     title = {A~criterion for the unique solvability of a~periodic boundary value problem for a~functional-differential equation},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {48--52},
     publisher = {mathdoc},
     number = {10},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1994_10_a6/}
}