Sturrock, J. 1880. Notice of a Jet Necklace and Urn of the Food-Vessel Type, found in a Cist at Balcalk, Tealing, and of the opening of Hatton Cairn, Parish of Inverarity, Forfarshire. Proceedings of the Society of Antiquaries of Scotland. 14, (Nov. 1880), 260–267. DOI:https://doi.org/10.9750/PSAS.014.260.267.