Gurbutt, P.A. (1993). Ituna: a model of the Solway Firth. Fisheries Research Technical Report, 93. Ministry of Agriculture, Fisheries and Food. Directorate of Fisheries Research: Lowestoft. 13 pp.
Deel van: Fisheries Research Technical Report. Directorate of Fisheries Research: Lowestoft. ISSN 0963-4916, meer
