%0 Journal Article
%A Patrick Labarque
%T Blueprint for a classic proof of the 4 colour theorem
%J Visual Mathematics
%D 2010
%V 12
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/VM_2010_12_2_a2/
%G en
%F VM_2010_12_2_a2