1. Heavy metals in Ionian and Tyrrhenian waters from a section of the Sicilian coast;Alfa;Mar. Pollut. Bull.,1982
2. The contents of 14 major and minor elements (mineral) in Norwegian fish species and fish byproducts, determined by atomic absorption spectrophotometry;Julsham;Fisk, Dir. Skr., Ser. Ernoering,1978
3. Open Sea Mariculture;Smith,1974