@article{VMUMM_1986_5_a8,
     author = {\`E. K. Lavrovskii and A. M. Formal'sky},
     title = {On the theory of control systems with delay},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {47--50},
     publisher = {mathdoc},
     number = {5},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1986_5_a8/}
}