"This dictionary was produced on the initiative of ARD and first appeared in 1972. The present edition has been substantially enlarged as a result of extensive research conducted by staff of an ARD/ZDF working group (BR, DW, HR, NDR, SR, SWF, IRT and ZDF) coordinated by Bavarian Radio (BR). This edition was compiled with the day to day requirements of radio and television broadcasters in mind. It has been extended by some 5.000 new entries, mainly in the fields of transmission/satellite technology, communications/cable systems, electro-acoustics, instrumentation, technical operations, editing." (Bet.de/buecher 2/99)