@article{IVM_2013_12_a7,
     author = {E. I. Bravyi},
     title = {Minimal periods of solutions to higher-order functional differential equations},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {77--82},
     publisher = {mathdoc},
     number = {12},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2013_12_a7/}
}