我国体育期刊引文年代特征分析

Analysis of the Quotations Time Feature of Chinese Sports Periodical

对 1 996～ 1 997年我国 2 0种体育期刊引文年代特征进行了分析 ,引文年代的分布集中于1 997～ 1 978年 ,最大引文年限 2～ 3年 ,文献半衰期 6.37年 ,中文文献半衰期 5.1

The analysizing of the quotations' time features of our country's 20 sports periodicals from 1996 to 1997 shows that the years of quotions distribute age is 2 to 3 years, the half life of documents is 6.37 years, in which chinese is 5.19 years and foreign languages is 9.12 years.