If you use this program for your scientific work, please cite it as

J. Kpper, A. Westphal, M. Schmitt, and K. Kleinermanns.
krot (Version x.y), a package for the analysis of HRLIF spectra,
Heinrich-Heine-Universitt, Dsseldorf, Germany.

( Replace the version number by the one that is approbiate for the
  version you actually used. )
