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  _____      ___     _    _      ___              
 /  ___||   / _ \\  | \  / ||   / _ \\      ___   
| // __    / //\ \\ |  \/  ||  / //\ \\    /   || 
| \\_\ || |  ___  ||| .  . || |  ___  ||  | [] || 
 \____//  |_||  |_|||_|\/|_|| |_||  |_||   \__ || 
  `---`   `-`   `-` `-`  `-`  `-`   `-`     -|_|| 
                                             `-`

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