Xiii. Remarks on certain Celtic Monuments at Locmariaker, in Britany; in a Letter from the Rev. John Bathurst Deane, M.A., F.S.A., to Henry Ellis, Esq. F.R.S., Secretary Deane, J.B. Archaeologia 25: 230-234 1832 10.1017/s0261340900023274 https://eurekamag.com/research/067/169/067169260.php