Nielsen. 1995. The Emergence of the os and ac Runes in the Runic Inscriptions of England and Frisia: A Linguistic Assessment.

The rights to the data are held by the Göttingen Academy of Sciences and Humanities in Lower Saxony and are subject to the CC-BY-SA 4.0 law. The RuneS research units Göttingen, Eichstätt-München and Kiel were involved in the generation of the data. The RuneS database contains data from the Kiel Runenprojekt, the Danish database runer.ku.dk and the Samnordisk runtextdatabas/Rundata accessible under the Open Database License (ODbL). Please also note the additional information on other origin of the data provided under the label sources.