%0 Journal Article
%A A. A. Lunev
%A M. M. Malamud
%T On an asymptotic expansion of the characteristic determinant for $2 \times 2$ Dirac type systems
%J Zapiski Nauchnykh Seminarov POMI
%D 2023
%P 94-136
%V 527
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_2023_527_a4/
%G ru
%F ZNSL_2023_527_a4