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      Any use of this software is permitted provided that this notice is not
        removed and that neither the authors nor the Technische Universitaet Berlin
        are deemed to have made any representations as to the suitability of this
        software for any purpose nor are held responsible for any defects of
        this software.  THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE.
      As a matter of courtesy, the authors request to be informed about uses
        this software has found, about bugs in this software, and about any
        improvements that may be of general interest.

      Berlin, #'~Rc
.b
        Jutta Degener
        Carsten Bormann