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

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Text this: Fifty Years of Fuzzy Sets: Contributions to Fuzzy Theory (Preface to the Special Issue)