Periodicity of Cambial Activity and Variability of Peroxidase and Esterase Isozymes in Eucommia ulmoides Oliv
LUO Lixin,CUI Keming,LI ZhengliChenglee Lee,LI Juhuai
Acta Scientiarum Naturalium Universitatis Pekinensis . 1999, (2): 209 -216 .