DOI, Digital Object Identifier, which is a new kind of identification system in the environment ofnetwork, and DOI search in the Springer Link database online has been introduced in this paper.

• 本文介绍了一种新的网络资源标识系统DOI及其在网络信息检索中的作用,并介绍了网上数据库检索系统SpringerLink中的DOI检索。