%0 Journal Article
%A Ivanov, Vsevolod
%T First Order Characterizations of Pseudoconvex Functions
%J Serdica Mathematical Journal
%D 2001
%P 203-218
%V 27
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SMJ2_2001_27_3_a1/
%G en
%F SMJ2_2001_27_3_a1