OECD, 2003a. The Diffusion of WPIIS Methodology in non-OECD Countries, background paper, DSTI/ICCP/IIS/(2003)12.
OCDE, 2003 a), The Diffusion of WPIIS Methodology in non-OECD Countries, document d'information, DSTI/ICCP/IIS(2003)12.