1. Universal service obligations and the emergence of citizens' rights in European telecommunications liberalization;Public services and citizenship in European law: public and labour law perspectives,1998
2. Commission Directive 88/301/EEC of 16 May 1988, on competition in the markets in telecommunications terminal equipment, OJ 1988, L131/73; Commission Directive 90/388/EEC of 28 June 1990 on competition in the markets for telecommunications services;OJ,1990