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ÀÚ·áÁ¦°ø: Oregon State University(¿À¸®°Ç ÁÖ¸³ ´ëÇÐ); Western Woods Products Association(¹Ì ¼ºÎ ¸ñÀç Çùȸ); Oregon Department of Forestry(¿À¸®°Ç ÁÖ »ê¸²±¹); California Redwood Association(͏®Æ÷´Ï¾Æ ·¹µå¿ìµå Çùȸ);
U.S. Forest Products Laboratory(¹Ì±¹ Àӻ깰 ¿¬±¸¼Ò)—Harry A. Alden(ÇØ¸®
A. ¾Ùµç), Softwoods of North
America(ºÏ¹ÌÀÇ Ä§¿±¼ö), FPL-GTR-102, 1997. |