【摘要】 以《情报学报》为例 ,对期刊载文的被引年代分布进行了较为详尽的考察和分析 ,发现其模式在 2 0世纪 90年代末发生了转型。接着 ,文中讨论了引起模式转型的原因 ,认为主要是由于网络技术及数字化期刊的飞速发展和普及应用 ,使得期刊论文的发表、传播和利用都有许多新变化 ,呈现出许多新特点的缘故。年代分布的转型将会大大加速文献的传播、利用的进程 ,并影响到文献计量学若干指标 ,如普赖斯指数等的计算方法的改变。更多还原

【Abstract】 The transformed mode of the distribution of years cited papers at the end of the last decade has been discovered based on the observation and analysis a case of journal of the China society for scientific and technical information in this paper and then the reasons of the mode transform had been discussed. The transformed mode of the year distribution shows that the utilization of published papers has been greatly speedup and it might influence some indexes of the bibliometrics such as Price’ index and so on.更多还原