%0 Journal Article
%A Tutte, W. T.
%T Chromatic Sums for Rooted Planar Triangulations, IV: The Case λ = ∞
%J Canadian journal of mathematics
%D 1973
%P 929-940
%V 25
%N 5
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1973-099-9/
%R 10.4153/CJM-1973-099-9
%F 10_4153_CJM_1973_099_9