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An analysis of crown condition of Picea, Fagus a Abies in relation to environment in Switzerland
- WEBSTER, Reginald P. - RIGLING, Andreas - WALTHERT, Lorenz. An analysis of crown condition of Picea, Fagus a Abies in relation to environment in Switzerland. In For. J. Inst. Chartered For, 1996, roč. 69, č. 4, s. 347-355.
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