1. The diffusion of advanced telecommunications in developing countries;Antonelli,1991
2. The big looser of the Hungarian telecommunication market;Apathy,1991
3. Electronics, computers and telephone switching;Chapuis,1990
4. Commission of the European Union (1987). Green Paper on the development of the common market for telecommunications services and equipment (COM(87)290).
5. Commission of the European Union (1988). Directive on competition in the markets for telecommunication equipment (88/301/EEC).