@misc{ClaessenMittnik2002,
  author    = {Holger Claessen and Stefan Mittnik},
  title     = {Forecasting stock market volatility and the informational efficiency of the DAX-index options market},
  booktitle = {Center for Financial Studies (Frankfurt am Main): CFS working paper series ; No. 2002,04},
  institution = {Center for Financial Studies (CFS)},
  series    = {CFS working paper series},
  number    = {2002, 04},
  type      = {workingpaper},
  year        = {2002},
}