%0 Journal Article
%A I. S. Kukles
%T On Frommer's method in singular point investigations
%J Doklady Akademii Nauk
%D 1957
%P 367-370
%V 117
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1957_117_3_a2/
%G ru
%F DAN_1957_117_3_a2