%0 Journal Article
%A Chuan-yi Xu
%T The existence of nonclassical asymptotic expansion of the trace of a heat kernel for a degenerate elliptic operator.
%J Mathematische Annalen
%D 1989
%P 447-462
%V 285
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1989__285_1_164611/
%F MAN_1989__285_1_164611