Irvine, J.T. 1885. Note of Excavations and Discoveries on the Tafts of Bayann, below Sellafirth, on Bastavoe, Yell, Shetland. Proceedings of the Society of Antiquaries of Scotland. 19, (Nov. 1885), 385–387. DOI:https://doi.org/10.9750/PSAS.019.385.387.