Smith, J. A. (1879). Notice of the Skull of a Large Bear (Ursus arctos, Linn.) found in a Moss in Dumfriesshire. With Remarks on Recorded References to the Presence of the Bear in former times in Scotland. Proceedings of the Society of Antiquaries of Scotland, 13, 360–376. https://doi.org/10.9750/PSAS.013.360.376