%0 Journal Article
%A Petrini, Milena
%T A result on the well posedness of the Cauchy problem for a class of hyperbolic operators with double characteristics
%J Rendiconti del Seminario Matematico della Università di Padova
%D 1995
%P 87-102
%V 93
%I Seminario Matematico of the University of Padua
%U http://archive.numdam.org/item/RSMUP_1995__93__87_0/
%G en
%F RSMUP_1995__93__87_0