SIMPSON, H F Morland. The Southesk and Other Rune Prime-Staves or Scandinavian Wooden Calendars. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 25, p. 256–332, 1891. DOI: 10.9750/PSAS.025.256.332. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6405. Acesso em: 5 may. 2024.