%0 Journal Article
%A Peter R. Popivanov
%T MInteraction of Singularities to the Solutions of Some Classes of Semilinear Hyperbolic Equations and Systems with One and Two Space Variables
%J Mathematica balkanica
%D 2004
%P 173
%V 18
%N 1-2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MABA_2004_18_1-2_a17/
%F MABA_2004_18_1-2_a17