Anderson, J. 1880. Notes on the Contents of two Viking Graves in Islay, Discovered by William Campbell, Esq., of Ballinaby; with Notices of the Burial Customs of the Norse Sea-Kings, as recorded in the Sagas and Illustrated by their Grave Mounds in Norway and in Scotland. Proceedings of the Society of Antiquaries of Scotland. 14, (Nov. 1880), 51–89. DOI:https://doi.org/10.9750/PSAS.014.51.89.