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  _____      ___      ______   __   __    _____   
 |__  //    / _ \\   /_____//  \ \\/ //  |__  //  
   / //    / //\ \\  `____ `    \ ` //     / //   
  / //__  |  ___  || /___//      | ||     / //__  
 /_____|| |_||  |_|| `__ `       |_||    /_____|| 
 `-----`  `-`   `-`  /_//        `-`'    `-----`  
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Text this: The composition of matter : symposium honouring Johannes Geiss on the occasion of his 80th birthday