Christopher Haworth, "Composing with Absent Sound", in Proceedings of the International Computer Music Conference 2011, University of Huddersfield, UK, 31 July – 5 August 2011, edited by Monty Adkins and Ben Isaacs, 342–45 (San Francisco: International Computer Music Association; Huddersfield: Centre for Research in New Music, University of Huddersfield, 2011). ISBN9780984527403.