نبذة مختصرة : Federal Railroad Administration, Office of Research and Development, Washington, D.C. ; Transportation Systems Center, Cambridge, Mass. ; Mode of access: Internet. ; Author corporate affiliation: Dynamic Science, Phoenix, Ariz. ; Report covers the period Nov 1973 to June 1974 ; Subject code: CDJI ; Subject code: DDB ; Subject code: NTLC ; Subject code: OEB*NLSI ; Subject code: WVIFKC ; Subject code: XMC
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