copyright, authors of little files in app

[Grammostola Rosea <rosea.grammostola@gmail.com>]

Hi,

What if some of the used parts of the app are copyright by other authors?


I've now:

Copyright:

    Copyright (C) 1994-2008 Sean Bolton

    Copyright (C) 2001,2002 Nick Dowell.
    Copyright (C) 1999 S. J. Brookes. 
    Copyright (C) 2002 
Mats                                                                  
    Copyright (C) 2002-4 Tim 
Goetze.                                                             
    Copyright (C) 2003 Peter 
Hanappe                                                                                                                                                     

    Copyright (C) 2003 Fons Adriaensen.
    Copyright (C) 2004 Paul Davis

Or should I list which specific file or part belongs to the author? How?

Copyright (C) 1994-2008 Sean Bolton

This is the author of the package, but how do I set the years? He 
started with it in 1994 and the last release was 2008....

\r