%0 Journal Article %A V. A. Yurko %T An inverse problem for systems of differential equations with nonlinear dependence on the spectral parameter %J Differencialʹnye uravneniâ %D 1997 %P 390-395 %V 33 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1997_33_3_a15/ %G ru %F DE_1997_33_3_a15