1) Advisory Group Aerospace Research Development (AGARD) (Oslo,1972; Roma, 1973; Monaco, 1978)

2) Inter Union Commission Radio Meteorology (Nizza, 1973), European Microwave Conference (Bruxelles, 1973; Amburgo, 1975)

3) NATO Advanced Study Institute (Sorrento, 1973), Accademia delle Scienze Ungherese (Budapest, 1978)

4) International Union Radio Science (URSI) (Helsinki, 1978; Canada 1980; Washington, 1981)

5) Università di Graz (Graz, 1975)

6) Università di Oporto e Lisbona (Oporto-Lisbona, 1978)

7) Institution of Electrical Engineers (IEE) (York, 1981)

8) IEEE International Conference on Communications (ICC) (Amsterdam, 1984);

9) IEEE International Conference on Communications (ICC) (Amsterdam, 1984)

10) Università di Napoli (Napoli, 1984)

11) Gruppo Elettromagnetismo del Consiglio Nazionale delle Ricerche (Saint Vincent, 1984)

12) International Centre for Theoretical Physics (Trieste, 1984)

13) International Symposium on Antennas and Propagation (Kyoto, 1985)

14) Asia-Pacific Microwave Conference (New Delhi, 1986)

15) International Microwave Symposium (Rio de Janeiro, 1987)

16) Cinquantesimo anniversario Guglielmo Marconi (Bologna, 1987)

17) "Bologna Nationes" Nono centenario Università di Bologna (S. Marino, 1989)

18) 38° Convegno Internazionale delle Comunicazioni (Genova, 1990)

19) Korea Society of Aerospace Technology (Seoul, 1992)

20) Seminar on “Research and Development of Telecommunications in Europe (Palermo, 1992)

21) Symposium “State and Progress of Research in Cryptography” (Roma, 1993)

22) Conference on “Communication: Technology, Economy, Culture” (Engelberg, 1995)

23) Symposium on “Cooperative Research for Building the Global Information Society” (Berlino, 1995)

24) Conferenza “Le Amministrazioni Pubbliche verso la Società multimediale (Roma, 1995)

25) Convegno “La Campania verso la Società della Comunicazione Globale” (Napoli, 1995)

 
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