Disposal of low activity radioactive waste proceedings of an international symposium on disposal of low activity radioactive waste organized by the International Atomic Energy Agency and hosted by the Government of Spain through the Empresa Nacional de Residuos Radiactivos, S.A. and the Consejo de Seguridad Nuclear in co-sponsorship with the Agence Nationale Pour la Gestion des Dechets Radioactifs and in cooperation with the OECD Nuclear Energy Agency, and held in Cordoba, Spain, 13-17 December 2004