南京林业大学学报（自然科学版）
The Anatomical Observation on the Occurrence and Development of Vascular Cambium in Populus deltoides
Yin Zengfang\ Fan Ruwen\ Gan Xihua\ Huang Guobing
JOURNAL OF NANJING FORESTRY UNIVERSITY . 1999, (06): 56 -60 .  DOI: 10.3969/j.jssn.1000-2006.1999.06.013

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