南京林业大学学报（自然科学版）
THE CHEMICAL ELEMENT CONTENTS IN TREE RINGS AND THE DYNAMIC CHANGES OF THE SURROUNDINGS
Qian Junlong Ke Xiaokang Wang Mingzhu Ke Shanzhe Chen Yijun
JOURNAL OF NANJING FORESTRY UNIVERSITY . 1998, (01): 22 -26 .  DOI: 10.3969/j.jssn.1000-2006.1998.01.006

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