@misc{JungGumlichKnacketal.1989,
  author    = {Jung, Ch. and Gumlich, H.-E. and Knack, A. and Mertins, H.-Ch.},
  title     = {Investigations on the cation d--levels of wide gap semimagnetic semiconductors, Proc. 4. Int. Conf. on II--VI--compounds, Berlin, Germany, 17.9. --22.9.},
  year      = {1989},
  language  = {en}
}
@misc{MertinsKatholyGumlichetal.1991,
  author    = {Mertins, H.-Ch. and Katholy, S. and Gumlich, H-E. and Jung, Ch.},
  title     = {Excitation of luminescence of Mn2+ in ZnS and ZnSe by synchrotron radiation, Proc. 3. International Meeting on Luminescence, Trassenheide, Germany, 14.10. -- 18.10.},
  year      = {1991},
  language  = {en}
}
@misc{MertinsGumlichJung1994,
  author    = {Mertins, H.-Ch. and Gumlich, H.-E. and Jung, Ch.},
  title     = {Carrier multiplication in ZnS:Mn: Investigation of Luminescence Excitation by Synchro-tron Radiation, Proc. 7.Int. Workshop on Electroluminescence, Beijing, China},
  year      = {1994},
  language  = {en}
}