The coding of SPECTRA has been done in close
contact with the scientists.
I am grateful to many of them for the discussions about the
features of the program
and for their patience while testing the code.
Especially W. Drube contributed a lot of valuable
suggestions for improvements.
I also thank him for reading the manual.
Th. Ohlow coded the interpreter of the control commands.
R. Frahm and M. Joppien made contributions to the features of SPECTRA and
the manual.
T. Schmidt wrote the code which does the FIO I/O.
A. Buttkewitz helped me in
finding the proper layout
for the graphical representation of the data.
D. Hupfeld contributed many good suggestions which enhanced the
performance of the on-line code.
