1. PCB regulation,1984
2. Verordnung über Höchstmengen an Schadstoffen in Lebensmitteln Bundesgesetzblatt,1988
3. Netherlands Indian Ocean Program 1990/1995,1991
4. Analysis of polychlorinated biphenyls (PCB) by glass capillary gas chromatography;Ballschmiter,1980
5. A rapid method of total lipid extraction and purification;Bligh;Can. J. Biochem. Physiol.,1959