%0 Journal Article
%A Hugo Duminil-Copin
%A Stanislav Smirnov
%T The connective constant of the honeycomb lattice equals $\sqrt{2+\sqrt 2}$
%J Annals of mathematics
%D 2012
%P 1653-1665
%V 175
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4007/annals.2012.175.3.14/
%R 10.4007/annals.2012.175.3.14
%G en
%F 10_4007_annals_2012_175_3_14