(Tirrenia)International Workshop on Digital Communications International Workshop on Digital Communications (Zurich)International Zurich Seminer on Digital Communications (1978)International Zurich Seminar on Digital Communications (1974)International Zurich Seminar On Digital Communications Tyrrhenian International Workshop on Digital Communications 2001(2001:Taormina,Italy) (New York)International Conference on Digital Satellite Communications International Zurich Seminar on Digital Communications International Zurich Seminer on Digital Communications (Kyoto)International Conference on Digital Satellite Communications