Simpson, J A <br/><br/>
Cosmic ray and solar particle investigations over the South polar regions of the sun.  [electronic resource] 

 -  Science (New York, N.Y.)  May 1995 
 - 1019-23 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0036-8075 
<br/><br/><label>Standard No.: </label>10.1126/science.268.5213.1019  doi