Repp, T. G. (1858). 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. Archaeologia Scotica, 4, 327-336. Retrieved from http://soas.is.ed.ac.uk/index.php/arch-scot/article/view/301