00290nam a22000977a 4500003000400000008004100004245003100045250006000076260003600136650002000172OSt201203b ||||| |||| 00| 0 eng d aPramana Journal Of Physics a2012(Jan Vol.78 No.1, Feb Vol.78 No.2, Mar Vol.78 No.3) aBengaluru, KarnatakabSpringer  aApplied Science