y bit tricky. 
topes using 
ara. Under 
far no trials 
© provision 
weas. Test 
x by Stereo- 
al methods, 
mputer and 
  
REPORT OF THE NATIONAL CARTOGRAPHIC | 
CENTRE OF IRAN | 
  
  
  
to the 
NINTH INTERNATIONAL CONGRESS OF PHOTOGRAMMETRY 
LONDON, SEPTEMBER 1960