3NANANG D M. Suitability of the normal ,log-normal and weibull distributions for fitting diameter distributions of neem platations in Northern Ghana [Jl. Forest Ecology and Management,1998,103:1 -7.
4GADOW K V, FULDNER K. Zur Methodikder Bestandes beschreibung [ R ]. Klieken:Vortrag an Laesslichder Jahrestagungder A G Forstein - richtung, 1992.
5HUI G Y, GADOW K V. Das Winkelmass-Theoretische berlegungen Zumoptimalen Standardw inkel [ J 1. Allgemeine Forestu. Jagdzei - tung, 2002,173(9) :173 - 177.
