%0 Journal Article
%A V. M. Babich
%T Finding of the saddle point for the ease of an ellipses
%J Zapiski Nauchnykh Seminarov POMI
%D 1970
%P 20-24
%V 17
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1970_17_a2/
%G ru
%F ZNSL_1970_17_a2