%0 Journal Article
%A Walsh, Bertram
%T Perturbation of harmonic structures and an index-zero theorem
%J Annales de l'Institut Fourier
%D 1970
%P 317-359
%V 20
%N 1
%I Institut Fourier
%C Grenoble
%U http://archive.numdam.org/articles/10.5802/aif.344/
%R 10.5802/aif.344
%G en
%F AIF_1970__20_1_317_0