00884nam a2200205 4500 1/22612 021121s1999 lu n001 0 eng 928286958X 24065 KET 385 ACR Acruda: assessment and certification rules for digital architectures. Luxembourg: Office for Official Publications of the European Communities, 1999 89 σ.: 24 εκ. Transport research. Fourth framework programme. Rail transport ; Railroads European Union countries Automatic train control. Street-railroads European Union countries Communication systems. Digital control systems. European Commission. Transport research. Fourth framework programme. Rail transport. INST UNIPILB KET 20050824 KET 385 ACR 00145725 00145725 LOAN 0 1