Study on the Impact of Liberalization of Community Cross-Border Mail, PricewaterhouseCoopers, Dezembro de 1998 (PDF)
Study on the Impact of Weight and Price Limits of the Reserved area in the Postal Sector, CTcon, Novembro de 1998 (PDF)
Costing & Financing of Universal Services in the Postal Sector in the European Union, N/e/r/a, Outubro de 1998 (PDF)
1997 Annual Report on the Performance of Leased Lines in Relation to Supply Conditions, Comissão Europeia, Outubro de 1998