A STUDY ON THE VARIABLE MERCHANTABLE VOLUME ESTIMATION SYSTEM
Yan Ruohai (Institute of Central South China of Forest Inventory & Ministry of Forestry)Wu Fuzhen
JOURNAL OF NANJING FORESTRY UNIVERSITY . 1992, (03): 31 -37 .  DOI: 10.3969/j.jssn.1000-2006.1992.03.007