%0 Journal Article
%A Almeida, P.
%T A direct approach to one variable noncommutative calculus
%J Portugaliae mathematica
%D 1989
%P 97-114
%V 46
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PORMA_1989__46_1_115653/
%G en
%F PORMA_1989__46_1_115653