%0 Journal Article
%A Sjöstrand, Johannes
%T Propagation of singularities for operators with multiple involutive characteristics
%J Annales de l'Institut Fourier
%D 1976
%P 141-155
%V 26
%N 1
%I Institut Fourier
%C Grenoble
%U https://aif.centre-mersenne.org/articles/10.5802/aif.602/
%R 10.5802/aif.602
%G en
%F AIF_1976__26_1_141_0