%0 Journal Article
%A I. Ts. Gokhberg
%A M. G. Krein
%T Volterra operators with imaginary component in one class or another
%J Doklady Akademii Nauk
%D 1961
%P 779-782
%V 139
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1961_139_4_a1/
%G ru
%F DAN_1961_139_4_a1