Sullivan, Paul; Taylor, Kevin G. (2003). "Sediment and porewater geochemistry in a metal contaminated estuary, Dulas Bay, Anglesey". Environmental Geochemistry and Health. 25 (1): 115–122. doi:10.1023/A:1021233923423. PMID12901086.
Qixing Zhou, P.S. Rainbow and B.D. Smith (2003). "Tolerance and accumulation of the trace metals zinc, copper and cadmium in three populations of the polychaete Nereis diversicolor". Journal of the Marine Biological Association of the United Kingdom. 83 (1). Cambridge University Press: 65–72. Bibcode:2003JMBUK..83...65Z. doi:10.1017/S0025315403006817h.
Qixing Zhou, P.S. Rainbow and B.D. Smith (2003). "Tolerance and accumulation of the trace metals zinc, copper and cadmium in three populations of the polychaete Nereis diversicolor". Journal of the Marine Biological Association of the United Kingdom. 83 (1). Cambridge University Press: 65–72. Bibcode:2003JMBUK..83...65Z. doi:10.1017/S0025315403006817h.
Sullivan, Paul; Taylor, Kevin G. (2003). "Sediment and porewater geochemistry in a metal contaminated estuary, Dulas Bay, Anglesey". Environmental Geochemistry and Health. 25 (1): 115–122. doi:10.1023/A:1021233923423. PMID12901086.