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

  _  __    ______    ______    ______   _    _   
 | |/ //  /_   _//  /_   _//  /_   _// | |  | || 
 | ' //    -| ||-     | ||     -| ||-  | |/\| || 
 | . \\    _| ||_    _| ||     _| ||_  |  /\  || 
 |_|\_\\  /_____//  /__//     /_____// |_// \_|| 
 `-` --`  `-----`   `--`      `-----`  `-`   `-`