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2. Effect of fibre length and coarseness on the burst strength of paper;El-Hosseiny;Tappi J.,1999
3. Wood Variation: Its Causes and Control;Zobel,1989
4. Present and Future Uses of Canadian Poplars in Fibre and Wood Productshttp://digitalcommons.usu.edu/aspen_bib/5234/
5. The relationship between fibre morphology and paper properties: A review of literature;Dinwoodie;Tappi,1965