%0 Journal Article %A Yu. F. Orlov %T On the ill-posedness of structural identification %J Differencialʹnye uravneniâ %D 2006 %P 1135-1137 %V 42 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2006_42_8_a14/ %G ru %F DE_2006_42_8_a14