@article{Ritchie_1971, title={Two new Pictish symbol stones from Orkney}, volume={101}, url={http://journals.socantscot.org/index.php/psas/article/view/8745}, DOI={10.9750/PSAS.101.130.133}, journal={Proceedings of the Society of Antiquaries of Scotland}, author={Ritchie, J}, year={1971}, month={Nov.}, pages={130-133} }