Köbler n.d.

Köbler, Gerhard. n.d. Altnordisches Wörterbuch (4th ed.). http://www.koeblergerhard.de/anwbhinw.html.

@misc{6929,
  author = {Köbler, Gerhard},
  title  = {Altnordisches Wörterbuch (4th ed.). http://www.koeblergerhard.de/anwbhinw.html.},
  year   = {n.d.}
}