1.		Vers des systèmes et des services à l'echelle de l'Europe : Livre Vert sur une approche commune dans le domaine des communications par satellites dans la Communauté européenne: communication de la commission: COM (90) 490 final / Commission des Communautés Européennes Data Publicação: 1990 Tema: Comunicações Eletrónicas
2.		Towards Europe-wide systems and services : Green paper on a common approach in the field of satellite communications in the european community: communication from the comissione: COM (90) 490 14.11.90: provisional version / Commission of the European Communities Data Publicação: 1990 Tema: Comunicações Eletrónicas