%0 Journal Article
%T Morphisms of locally compact groupoids endowed with Haar systems
%A M. R. Buneci
%A P. Stachura
%J Mathematics
%D 2005
%I arXiv
%X The purpose of this paper is extend the notion of morphism of groupoids introduced by Zakrzewski to locally compact $\sigma$-compact groupoids endowed with Haar systems and to use the extension to construct a covariant functor from this category to a category of $C^{\ast}$-algebras in the sense of Woronowicz.
%U http://arxiv.org/abs/math/0511613v2