摘要
With the development of the digital library,the sale of digital information has become an important topic.The paper discusses the sales problem of digital information.
With the development of the digital library,the sale of digital information has become an important topic.The paper discusses the sales problem of digital information.
出处
《情报理论与实践》
CSSCI
北大核心
2000年第3期187-188,共2页
Information Studies:Theory & Application
