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9William T Simpson. Estimating heating times of wood boards, square timbers, and logs in saturated steam by muhiple regression. Forest products journal, 2006, 56 : 26 - 28.
10William T Simpson. Mechanisms responsible for the effect of wet bulbs depression on heat sterilization of Slash Pine lumber. Wood and fiber science, 2003, 35(2) : 175 - 186.
