@article{KUIPM_1984_a11,
     author = {V. G. Nikitin},
     title = {Periodic solution of an inhomogeneous differential equation with linearly deviating argument},
     journal = {Issledovaniya po Prikladnoi Matematike i Informatike},
     pages = {105--111},
     publisher = {mathdoc},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUIPM_1984_a11/}
}