南京林业大学学报（自然科学版）
The Sufficient and Essential Conditions of Orthogonal Matrix and Some Properties of O-orthogonal Matrix
XU Yong-ping, SHI Xiao-ping
JOURNAL OF NANJING FORESTRY UNIVERSITY . 2005, (02): 54 -56 .  DOI: 10.3969/j.jssn.1000-2006.2005.02.013

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