@article{ZollnerRehnDietl2010,
  author    = {Zollner, Ursula and Rehn, Monika and Dietl, Johannes},
  title     = {Perinatal Problems in Multiple Births Inconsistent Terminology},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-85850},
  year      = {2010},
  language  = {en}
}