TY  - BOOK
ED  - Vaporeto (Project)
ED  - Great Britain.
ED  - National Air Traffic Services (Great Britain)
ED  - European Commission.
ED  - Office for Official Publications of the European Communities
TI  - Validation process for users' requirements in air traffic operations
SN  - 9282799751
U1  - 629.1366094 21
PY  - 1997///
CY  - Luxembourg
PB  - Office for Official Publications of the European Communities
KW  - Air traffic control
KW  - European Union countries
KW  - Evaluation
N1  - European Commission, Directorate-General Transport"--Cover; References: p.45-47
ER  -