Received:September 21, 1992  
Key Word:   
Fund ProjectL:
Author NameAffiliation
丁宣浩 四川达县师专数学系 
石刚 广西右江师专 
Hits: 1281
Download times: 688
Abstract:
      
Citation:
DOI:10.3770/j.issn:1000-341X.1995.03.035
View Full Text  View/Add Comment  Download reader