An unconventional approach to timber yield regulation for multi-aged, multispecies forests. 2. Application to a South African forest von Seydack, A.H.W. (Department of Water Affairs and Forestry, Knysna (South Africa)), Vermeulen, W.J, Heyns, H.E, Durrheim, G.P, Vermeulen, C, Willems, D, Ferguson, M.A, Huisamen, J, Roth, J

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