Lawson, John, David Reed, Colin Wallace, Jonathan Millar, and Mike Middleton. 2003. “Conservation and Change on Edinburgh’s Defences: Archaeological Investigation and Building Recording of the Flodden Wall, Grassmarket 1998–2001”. Scottish Archaeological Internet Reports 10 (January):1-21. https://doi.org/10.9750/issn.2056-7421.2003.10.1-21.