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  _____     _____     _____    _    _    ______   
 / ____||  |  ___||  / ____|| | || | || |      \\ 
/ //---`'  | ||__   / //---`' | || | || |  --  // 
\ \\___    | ||__   \ \\___   | \\_/ || |  --  \\ 
 \_____||  |_____||  \_____||  \____//  |______// 
  `----`   `-----`    `----`    `---`   `------`

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Text this: Levy solutions for vibration of multi-span rectangular plates