摘要
                
                    本文在查阅了国内外有关灰色文献的论述 ,分析了我国灰色文献的利用现况基础上 ,就灰色文献内涵与外延的有关现象进行了比较和分析之后 ,提出了自己的认识 ,对灰色文献概念的内涵与外延重新进行了界定 ,对其依据也作了新的阐释 ,同时对灰色文献与零次文献。
                
                This paper looked up a lot of articles from domestic and international about Grey-Literature,analyzed the situation utilized of the Grey-Literature in china,compared and studying about the phenomenon of connotation and extension of Grey-Literature,this paper put up the definition of the connotation and extension of Grey-Literature and give a clear explanation of it's basis.At the same time,this paper analyse and compare the Grey-Literature and Zero-Literature,Grey-Literature and Black-Literature.
    
    
    
    
                出处
                
                    《图书馆建设》
                        
                                北大核心
                        
                    
                        2003年第1期13-15,共3页
                    
                
                    Library Development
     
    
                关键词
                    灰色文献
                    内涵
                    外延
                    文献等级结构
                    零次文献
                    黑色文献
                
                        Science and technology
                         Information
                         Library Science
                         Grey-Literature
                         Connotation
                         Extension