%0 Journal Article
%A Ree, Rimhak
%T On Certain Pairs of Matrices which do not Generate a Free Group
%J Canadian mathematical bulletin
%D 1961
%P 49-52
%V 4
%N 1
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1961-008-3/
%R 10.4153/CMB-1961-008-3
%F 10_4153_CMB_1961_008_3