%0 Journal Article
%A Mark V. Lawson
%A Alistair R. Wallis
%T Levi categories and graphs of groups
%J Theory and applications of categories
%D 2017
%P 780-802
%V 32
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TAC_2017_32_a22/
%G en
%F TAC_2017_32_a22