Received:January 11, 1990  
Key Words:   
Fund Project:
Author NameAffiliation
邱凎俤 宁德师专数学系 
何文龙 三明师专数学系 
Hits: 2091
Download times: 877
Abstract:
      
Citation:
DOI:10.3770/j.issn:1000-341X.1993.01.036
View Full Text  View/Add Comment