@article{IVM_1969_10_a7,
     author = {J. P. Konovalov},
     title = {The almost periodic solutions of quasiharmonic systems with lag},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {62--69},
     year = {1969},
     number = {10},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1969_10_a7/}
}