Describir: The proceedings of Mathematics & Design 2001 :

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