%0 Journal Article %A A. A. Shkalikov %T Regular spectral problems for systems of ordinary differential equations of the first order %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2021 %P 939-941 %V 76 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_2021_76_5_a6/ %G en %F RM_2021_76_5_a6