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2. 2) Black, J. M., Lutz, J. F., Mraz, E. A.: Performance of softwood plywood during 10 years' exposure to weather. Forest Prod. J. 26 (4) , 24-27 (1976).
3. 3) Gillespie, R. H., River, B. H.: Durability of adhesives in plywood. Forest Prod. J. 26 (10) , 21-25 (1976).
4. 7) Biblis, E.: Effect of weathering on surface quality and structural properties of six species of untreated commercial plywood siding after 6 years of exposure in Alabama. Forest Prod. J. 50 (5) , 47-50 (2000).
5. 9) Jokerst, R.: Long term durability of laboratory-made Douglas-fir flakeboard. USDA Forest Service, Forest Products Laboratory Research Note FPL0199 (1968) .