南京林业大学学报（自然科学版）
Comparison of visual grading rules for structural lumber in different standards
JIANG Jinghui1, L Jianxiong1*, REN Haiqing1, ZHU Changqing2
JOURNAL OF NANJING FORESTRY UNIVERSITY . 2009, (06): 25 .  DOI: 10.3969/j.jssn.1000-2006.2009.06.006

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