BAILEY, M. E.; BUTLER, C. J.; FINNEGAN, J.; KELLY, S. T. The Cut Benchmarks at Armagh Observatory: Marking Two Hundred Years of the Ordnance Survey of Ireland. Irish Geography, [S. l.], v. 56, n. 2, 2024. Disponível em: https://irishgeography.ie/index.php/irishgeography/article/view/1496. Acesso em: 11 dec. 2024.