Received:January 22, 1984  
Key Words:   
Fund Project:
Author NameAffiliation
Dang Yongshi Zhengzhou Institute of Surveying and Mapping 
Hits: 1965
Download times: 997
Abstract:
      
Citation:
DOI:10.3770/j.issn:1000-341X.1985.01.003
View Full Text  View/Add Comment