对《北京农业大学学报》1991～1995年期间所刊论文的引文分析结果表明，平均引文量为9．84篇，引文语种主要为英文和中文，分别为60％和37％；引文类型主要为期刊，占70．3%，其次为图书16．9％，特种文献12．8%；由布拉德福原理确定得出，对本校读者群，中文核心刊10种，次核心刊60种，外文核心刊25种，次核心刊125种；中文刊和外文刊的半衰期分别为4．9年和10．6年，馆藏满足率分别为93．3％和75．3％。 The citation analysis of the papers published in Journal of Beijing Agricultural University from 1991 to 1995 shows that the average number of citations is 9.84, and the main quotations are English and Chinese, which are 60% and 37% respectively. The types of citation are mainly Journals, accounting for 70.3%, followed by books 16.9%, 12.8% of specialty literature; determined by Bradford’s principle, the readers of this school, the Chinese core 10, 60 core journals, foreign There were 25 core journals and 125 secondary journals. The half-lives of Chinese journals and foreign journals were respectively 4.9 years and 9.6 years. The satisfaction rates of collections were 93.3% and 75.3% respectively.