INTERNATIONAL SOCIETY FOR PHOTOGRAMMETRY 
SUB-COMMISSION IV:4 
  
FUNDAMENTAL QUESTIONS IN 
RELATION TO CONTROLLED 
EXPERIMENTS 
REPORT ON WORK PERFORMED DURING 
THE PERIOD 1958—1960 
B. HALLERT 
PRESIDENT 
L. OTTOSON C. O. TERNRYD 
ASSOCIATE ASSOCIATE 
  
STOCKHOLM 1960