@misc{Ellgring1993,
  author    = {Ellgring, Johann Heinrich},
  title     = {Wohlbefinden - Subjective Wellbeing},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-42000},
  year      = {1993},
  abstract  = {No abstract available},
  language  = {de}
}