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4. BREF, 2010. Draft Reference Document on Best Available Techniques in the Pulp and Paper Industry http://eippcb.jrc.es/reference/BREF/PP_D1_0410.pdf.
5. Burt, M., 1998. CPPA/TAPPI Mechanical Pulping Committees, May 27–30, 1998, Timmins, Ontario.