%0 Journal Article
%A SvetIa Spirova
%T Strong Solvability of a Boundary Value Problem for an Equation of Mixed Type
%J Mathematica balkanica
%D 1994
%P 287
%V 8
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MABA_1994_8_4_a1/
%F MABA_1994_8_4_a1