世界上究竟有多少检索刊物?说法不一。据估计,全世界检索刊物4000多种,由40多个国家编辑出版,常用的约2000种,科技情报检索刊物约1500余种,其中以苏联、美国、英国、法国、日本为最多。检索工具在科技情报交流体系中占有相当重要的位置。近二十多年来,检索工具的编制和利用有了很大的发展。现将检索工具的发展动向介绍如后:一、编制检索工具的协调化与集中化一个检索工具是否为广大读者所信赖,主要取决于它所报导有关专业文献的完整 How many publications in the world search? Different opinions. It is estimated that there are more than 4,000 kinds of search journals in the world, edited and published by more than 40 countries, about 2,000 commonly used titles, and about 1,500 titles of science and technology information search journals, of which the Soviet Union, the United States, Britain, France and Japan are the most numerous. Search tools occupy a very important position in the exchange of scientific and technological information. In the past twenty years, the development and utilization of search tools have greatly developed. Now the development trend of search tools as follows: First, the preparation of the coordination and centralization of search tools Whether a search tool is trusted by the majority of readers depends largely on the integrity of the professional literature it reports