Pramana Journal of Physics 

 - National  Indian Academy Of Science, Bangalore  1999 
 -  52 .
<br/><br/> Issue No. 1-3 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>Pramana<br/>Journal<br/>of<br/>Physics<br/>Phiysics<br/>Phiysics