Ed. by Hans-Peter Gassmann.High Level Conference on Information, Computer and Communications Policies for the 80`s (1980 : Paris)：Information, computer and communications policies for the 80`s.North-Holland Pub. Co.,1981.
High Level Conference on Information, Computer and Communications Policies for the 80`s (1980 : Paris)：Information, computer and communications policies for the 80`s
Ed. by Hans-Peter Gassmann.North-Holland Pub. Co.,1981.
