Research on competition in the financing and delivery of health services : future research needs : proceedings of a conference held at the Hubert H. Humphrey Building, Washington, D.C., on March 4, 1982 /

"October 1982."

Motor vehicle demand models: assessment of the state of the art and directions for future research. Final report.

National Highway Traffic Safety Administration, Office of Research and Development, Washington, D.C.

Aggregate auto travel forecasting: state of the art and suggestions for future research. Final report.

Transportation Department, Office of the Assistant Secretary for Systems Development and Technology, Washington, D.C.