Rate of convergence for the Euclidean minimum spanning tree limit law

Let N"n be the number of points of a Poisson point process of intensity n times the Lebesgue measure over [0,1]^2, and let L"M"S"T(N"n) be the length of the optimal spanning tree connecting these N"n points. It is well-known that there is a constant 0 " "~ EL"M"S"T(N"n)/@/n = @b"M"S"T. In this paper we give the exa rate of convergence for this limiting behavior.