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2. Alexander, R. R.: 1967, ?Windfall After Clear Cutting on Fool Creek', Rocky Mountain Forest and Range Experiment Station. U. S. Forest Service?, Research Note RM-92, 1?11.
3. Amtmann, R.: 1986, ?Dynamische Windbelastung von Nadelbäumen?, Forstliche Forschungsberichte München, 74, 218.
4. Blackburn, P. and Petty, J. A.: 1988, ?Theoretical Calculations of the Influence of Spacing on Stand Stability?, Forestry, 61(3), 235?244.
5. Blackburn, P., Petty, J. A. and Miller, K. F.: 1988, ?An Assessment of the Static and Dynamic Factors Involved in Windthrow?, Forestry 61, 29?43.