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    Work zone safety; pavement marking, retroreflectivity

    National Research Council, Transportation Research Board, USA | TIBKAT | 2000

    Winter maintenance innovations; vehicle rental rates

    National Research Council, Transportation Research Board, USA | TIBKAT | 2000

    Vehicle characteristics : presented at the 41st annual meeting january 8 - 12, 1962

    National Research Council, Highway Research Board, USA | TIBKAT | 1962

    Utilization of highway engineering manpower : presented at the 35. annual meeting, January 17 - 20, 1956

    National Research Council, Highway Research Board, USA | TIBKAT | 1956