%0 Journal Article
%A Piotr Rybka
%T Propagation of weak singularities on characteristic surfaces of non-constant multiplicity
%J Annales Polonici Mathematici
%D 1988
%P 81-92
%V 49
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/ap-49-1-81-92/
%R 10.4064/ap-49-1-81-92
%G en
%F 10_4064_ap_49_1_81_92