The Physicl and Chemical Characteristics of Gum Rosin from Simao Pine and Yunnan Pine
YIN Xiao-bing,GENG Shu-xiang
JOURNAL OF NANJING FORESTRY UNIVERSITY . 2004, (02): 57 -60 .  DOI: 10.3969/j.jssn.1000-2006.2004.02.014