“Letter from Thorleif Gudmundson Repp, A.M., F.S.A. Sc., to the Hon. Montstewart Elphinstone, Honorary Member S.A.Sc., Regarding the Runic Inscription on the Monument at Ruthwell”. 1858. Archaeologia Scotica 4 (November): 327-36. https://soas-test.journals.ed.ac.uk/index.php/arch-scot/article/view/301.