Report on a negotiation : Helsinki, Geneva, Helsinki 1972-1975 / ed. by Luigi Vittorio Ferraris; with contrib. by Mario Alessi a.o.; transl. from the Ital. by Marie-Claire BarberReport on a negotiation : Helsinki-Geneva-Helsinki 1972-1975 / ed. by Luigi Vittorio Ferraris ; with contributions by Mario Alessi ... [et al.] ; transl. from the Italian by Marie-Claire Barber