%0 Journal Article
%A I. Gohberg
%A J. Laiterer
%T A criterion for factorization of operator-functions with respect to a contour
%J Doklady Akademii Nauk
%D 1973
%P 529-532
%V 209
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1973_209_3_a2/
%G ru
%F DAN_1973_209_3_a2