A preliminary crown biomass table for even-aged Picea abies stands in Switzerland

Usoltsev VA & Hoffmann CW
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Usoltsev, V. A., & Hoffmann, C. W. (1997). A preliminary crown biomass table for even-aged Picea abies stands in Switzerland. Forestry, 70(2), 103-112. https://doi.org/10.1093/forestry/70.2.113-a