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  _____      ___     _    _      ___      ____    
 / ____||   / _ \\  | || | ||   / _ \\   |  _ \\  
/ //---`'  / //\ \\ | || | ||  / //\ \\  | |_| || 
\ \\___   |  ___  ||| \\_/ || |  ___  || | .  //  
 \_____|| |_||  |_|| \____//  |_||  |_|| |_|\_\\  
  `----`  `-`   `-`   `---`   `-`   `-`  `-` --`

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