| Introduced species in the English Channel and North Sea |
| Farnham, W.F. (1998). Introduced species in the English Channel and North Sea, in: Scott, G.W. et al. (Ed.) (1998). Changes in the marine flora of the North Sea. pp. 99-117 |
| In: Scott, G.W.; Tittley, I. (Ed.) (1998). Changes in the marine flora of the North Sea Centre for European Research into Coastal Issues (CERCI): Scarborough. ISBN 0-9534857-0-6. 168 pp., meer |
|
