%0 Journal Article
%A P. Popivanov
%T Wave fronts of solutions of some classes of non-linear partial differential equations
%J Banach Center Publications
%D 1992
%P 361-366
%V 27
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/-27-2-361-366/
%R 10.4064/-27-2-361-366
%G en
%F 10_4064__27_2_361_366