00290nam a22000977a 4500003000400000008004100004245003100045250006000076260003600136650002000172OSt201203b           ||||| |||| 00| 0 eng d  aPramana Journal Of Physics  a2011(Jul Vol.77 No.1, Aug Vol.77 No.2, Sep Vol.77 No.3)  aBengaluru, KarnatakabSpringer   aApplied Science