| 李云霞.农业资源环境类核心期刊引文量的年度分布特征.编辑学报,2008,20(2):177-178 |
| 农业资源环境类核心期刊引文量的年度分布特征 |
| Distribution characteristic analysis of references for core journals of agricultural resources and environment |
| 投稿时间：2007-07-22 修订日期：2007-07-22 |
| DOI： |
| 中文关键词: 农业资源环境类核心期刊 期刊文献 图书文献 变异系数 引文量年度变化 |
| 英文关键词: core journal of agricultural resources and environment journal literature book literature variation coefficient yearly distribution of references |
| 基金项目: |
|
| 摘要点击次数: 939 |
| 全文下载次数: 936 |
| 中文摘要: |
| 对12种农业资源环境类核心期刊引用期刊文献和图书文献的 数量分时段进行统计分析。结果表明:期刊文献引用量高于图书文献；中文文献引用量变异 系数小于外文文献；近期文献引用量变异程度高于远期文献。 |
| 英文摘要: |
| Distribution characteristics of references for core journals of agricultural resources and environment are analyzed. The results show that the references in journals are more than that in books; the variation coefficient of Chinese language reference amount is less than that of foreign language references; the variation coefficient of references in recent years is greater than that in bygone years. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
