@article{HarthPeter1988,
  author    = {Harth-Peter, Waltraud},
  title     = {Vorwort (Das Kind (1988) 4)},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-42806},
  year      = {1988},
  abstract  = {No abstract available},
  subject      = {Kind},
  language  = {de}
}
@article{HarthPeter1992,
  author    = {Harth-Peter, Waltraud},
  title     = {Vorwort (Das Kind (1992) 11)},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-43312},
  year      = {1992},
  abstract  = {No abstract available},
  subject      = {Kind},
  language  = {de}
}
@article{HarthPeter1992,
  author    = {Harth-Peter, W.},
  title     = {Frieden und Erziehung - Maria Montessori und die Welt von morgen},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-47117},
  year      = {1992},
  abstract  = {No abstract available},
  subject      = {Erziehung},
  language  = {de}
}