Science Reports: Very high frequency (100 kHz) and ultra high frequency (410 kHz) sidescan sonar surveys. In: B.J. Bett, D.S.M. Billett, D.G. Masson & P.A.Tyler (eds) RRS Discovery Cruise 248, 07 Jul – 10 Aug 2000. A Multidisciplinary Study of the Environment and Ecology of Deep-Water Coral Ecosystems and Associated Seabed Facies and Features (the Darwin Mounds, Porcupine Bank and Porcupine Seabight). Southampton Oceanography Cruise Report No. 36, p.28-31.