1. Residuos organoclorados en huevos de diez species de aves del Delta del Ebro;Alberto;Publs Dep. Zool., Barcelona,1981
2. Concentrations of heavy metals in some Antarctic and North American seabirds;Anderlini,1972
3. Toxicity and persistence of low level PCB in adult Wistar rats, fetuses and young;Baker;Arch. Environ. Contam. Toxicol.,1977
4. Mercurio totale in pesci marini pelagici;Baldi,1980
5. Mercury concentrations in pelagic fishes (anchovy, mackerel and sardine) from the Italian coast and Strait of Gibraltar;Baldi,1978