%0 Journal Article %A T. S. Bykova %T Systems with aftereffect and finite-dimensional space of essential solutions %J Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta %D 2012 %P 21-23 %N 1 %U http://geodesic.mathdoc.fr/item/IIMI_2012_1_a8/ %G ru %F IIMI_2012_1_a8