Yearbook of european telecommunications / ed. CIT Publications
Yearbook of european telecommunications 1998 / ed. CIT Publications
The yearbook of european telecommunications 1999 / ed. CIT Publications
The yearbook of european telecommunications 2000 / ed. CIT Publications
Datafile of european telecommunications / ed. CIT Publications
The yearbook of european telecommunications 2003 / ed. CIT Publications
Yearbook of european telecommunications 1992 / ed. CIT Publications
Yearbook of european telecommunications 1993 / ed. CIT Publications
The yearbook of Asia-Pacific telecommunications 1999 / ed. CIT Publications