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__    __    ______   _    _     _____             
\ \\ / //  /_   _// | \  / ||  |  ___||   ____    
 \ \/ //    -| ||-  |  \/  ||  | ||__    |    \\  
  \  //     _| ||_  | .  . ||  | ||__    | [] ||  
   \//     /_____// |_|\/|_||  |_____||  |  __//  
    `      `-----`  `-`  `-`   `-----`   |_|`-`   
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Text this: EXPERIMENTAL STUDY ON NONLINEAR OPTICAL PROPERTIES OF METAL CLUSTERS SERIES