Avis, MR 2000, The active control of low frequency room modes , PhD thesis, University of Salford.

Cox, TJ 1992, Objective and subjective evaluation of reflecting and diffusing surfaces in auditoria , PhD thesis, University of Salford.

Davies, WJ 1992, The effects of seating on the acoustics of auditoria , PhD thesis, University of Salford.

Fazenda, BM 2004, Perception of room modes in critical listening spaces , PhD thesis, University of Salford, UK.

Hughes, RJ 2011, Volume diffusers for architectural acoustics , PhD thesis, University of Salford.

Koziel, Zbigniew 2012, Exposure‐response relationships from railway noise in the presence of vibration , MSc By research thesis, University of Salford.

Oldfield, Robert. G 2006, Improved membrane absorbers , MSc By research thesis, The University of Salford.