@article{DAN_1968_183_5_a2,
     author = {V. K. Dubolar'},
     title = {Dynamical systems with lag},
     journal = {Doklady Akademii Nauk},
     pages = {999--1002},
     publisher = {mathdoc},
     volume = {183},
     number = {5},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1968_183_5_a2/}
}