@misc{KraftSeifried2009,
  author    = {Holger Kraft and Frank Thomas Seifried},
  title     = {Foundations of continuous-time recursive utility : differentiability and normalization of certainty equivalents},
  institution = {Wirtschaftswissenschaften},
  series    = {Working paper series / Johann-Wolfgang-Goethe-Universit{\"a}t Frankfurt am Main, Fachbereich Wirtschaftswissenschaften : Finance \& Accounting},
  number    = {196},
  year      = {2009}
}