@misc{Kraemer2004,
  author    = {Kr{\"a}mer, Raimund},
  title     = {Editorial},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-47376},
  year      = {2004},
  language  = {de}
}
@misc{Kraemer2004,
  author    = {Kr{\"a}mer, Raimund},
  title     = {Editorial},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-46546},
  year      = {2004},
  language  = {de}
}
@misc{Kraemer2004,
  author    = {Kr{\"a}mer, Raimund},
  title     = {Editorial},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-47105},
  year      = {2004},
  language  = {de}
}