Kahlon, Simranjeet Kaur. <br/><br/>
Theoretical approach to self focusing by variational technique. 
Kahlon 
 - Dr.B.R.Amb 
 - Jalandhar.  Dr.B.R.Ambedkar National Institute of Te  2008 
 - 40p 
<br/><br/><label>Dewey Class. No.: </label>539.2  / KA-T