KUNGL. TEKNISKA HOGSKOLANS HANDLINGAR 
TRANSACTIONS OF THE ROYAL INSTITUTE OF TECHNOLOGY 
STOCKHOLM, SWEDEN 
Nr 219 1964 
Pure and Applied Mathematics and Physics 25 
UDC 528.72 
Communication to the X. International Congress 
for Photogrammetry 1964. Commission II 
THE GEOMETRICAL QUALITY OF RAYS, 
RECONSTRUCTED FROM PHOTOGRAPHS 
BY 
B. HALLERT 
GOTEBORG 1964. 
ELANDERS BOKTRYCKERI AKTIEBOLAG