Robertson, R, et al. “Notice of the Discovery of a Stone Cist and Urns at the Cuninghar, Tillicoultry;: With Notes on the Contents and the Sculptured Covering Stone of the Cist; And on the Microscopical Examination of the Fibrous or Hairy Substance Found in the Cist”. Proceedings of the Society of Antiquaries of Scotland, vol. 29, Nov. 1895, pp. 190-7, doi:10.9750/PSAS.029.190.197.