Heavy metals in coastal sediments of the Ligurian sea off Vado Ligure R.M. Bertolotto, B. Tortarolo, M. Frignani, L.G. Bellucci, S. Albanese et C. Cuneo J. Phys. IV France, 107 (2003) 159-162 DOI: 10.1051/jp4:20030267