Simulation of competition for light in even-aged stands of Douglas Fir von Van Gerwen, C.P., Spitters, C.J.T., Mohren, G.M.J.

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Simulation of primary production in even-aged stands of Douglas fir von Mohren, G.M.J., Van Gerwen, C.P., Spitters, C.J.T.

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Variability in the pathogenicity of Nectria ditissima Tul. cause of beech canker von Perrin, R, van Gerwen, CP

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