%0 Journal Article
%A Y.W. Chen
%T HOELDER continuity and initial value problems of mixed type differential equations.
%J Commentarii mathematici Helvetici
%D 1959
%P 296-321
%V 33
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1959__33_139177/
%F CMH_1959__33_139177