Thomson, E <br/><br/>
CONCERNING RECENT AURORAS, MAY 13 AND MAY 14, 1921.  [electronic resource] 

 -  Science (New York, N.Y.)  Jun 1921 
 - 534-5 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0036-8075 
<br/><br/><label>Standard No.: </label>10.1126/science.53.1380.534-a  doi