%0 Journal Article
%A Argyros, Ioannis K.
%T Some sufficient conditions for finding a second solution of the quadratic equation in a Banach space
%J Mathematica slovaca
%D 1988
%P 403-408
%V 38
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MASLO_1988__38_4_a13/
%G en
%F MASLO_1988__38_4_a13