Sharma, A <br/><br/>
Tracing rays through graded-index media: a new method.  [electronic resource] 

 -  Applied optics  Mar 1982 
 - 984-7 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1559-128X 
<br/><br/><label>Standard No.: </label>10.1364/AO.21.000984  doi