@article{IIMI_2006_37_3_a33,
     author = {V. V. Krakhotko and G. P. Razmyslovich},
     title = {Controllability of causal differential-algebraic systems with delay},
     journal = {Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta},
     pages = {75--76},
     publisher = {mathdoc},
     volume = {37},
     number = {3},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIMI_2006_37_3_a33/}
}