Kustaanheimo, Paul <br/><br/>
Comparison Between the Photometries of the Solar Corona of the Total Eclipse of July 9, 1945,  as Performed at the Observatories of Stockholm and Helsinki 

 - Helsinki :   Suomalainen Tiedeakatemia,   1953. 
 - 13 p. ;   21 cm. 
 - Annales Academiae Scientiarum Fennicae ;   159 .