@article{EiffHartmannJungetal.2001,
  author    = {Eiff, W. von and Hartmann, B. and Jung, U. and Ziegenbein, R.},
  title     = {Intermediate Care: An Alternative Proposal for Monitored Care},
  series = {Eiff, W. von (Hrsg.), International Hospital Comparison, Volume 4, G{\"u}tersloh},
  journal   = {Eiff, W. von (Hrsg.), International Hospital Comparison, Volume 4, G{\"u}tersloh},
  pages     = {163 -- 173},
  year      = {2001},
  language  = {en}
}
@article{ZiegenbeinEiffMassaroetal.2002,
  author    = {Ziegenbein, R. and Eiff, W. von and Massaro, T. and Yau, Voo},
  title     = {Medical savings accounts: a core feature of Singapore´s health care system},
  series = {The European Journal of Health Economics, Number 3},
  journal   = {The European Journal of Health Economics, Number 3},
  pages     = {188 -- 195},
  year      = {2002},
  language  = {en}
}