STUDIES ON THE OPTIMUM PLANTING DENSITY OF I-69 POPLAR PLANTATION FOR PLYWOOD
Liang Jun Xu Xizeng Lü Shixing
JOURNAL OF NANJING FORESTRY UNIVERSITY . 1998, (01): 1 -4 .  DOI: 10.3969/j.jssn.1000-2006.1998.01.001