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

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Text this: Origin and early evolution of comet nuclei : workshop honouring Johannes Geiss on the occasion of his 80th birthday