See:
- Gabriel Pizzorno, Gareth Darbyshire: Mapping Gordion in: C. Brian Rose eds, The Archaeology of Phrygian Gordion, Royal City of Midas: Gordion Special Studies 7 (2013). pp. 23-38
- Richard Liebhart, Gareth Darbyshire, Evin Erder, Ben Marsh, A Fresh Look at the Tumuli of Gordio, in: Tumulus as Sema. Vol XXVII, 2016