Judy Perkins

Productivity Performance of U.S. Passenger Airlines Since Deregulation

Judith L. Mwakalonge, Robert A Powell, Judy Perkins, 2012 .

Empirical Assessment of the Spatial Transferability of Automobile-Specific Carbon Dioxide (CO2) Models

Judith L. Mwakalonge, Saidi Siuhi, Judy Perkins, 2012 .

Developing a GIS-Based System for Analyzing Medical Transportation Activities

Yonggao Yang, Matthew Hudson, Judy Perkins, 2008, IKE.

PUBLIC TRANSPORTATION SOLUTIONS FOR REGIONAL TRAVEL: TECHNICAL REPORT

Laura L Higgins, F. Benjamin Zhan, Judy Perkins, 2008 .

Regional transit coordination guidebook.

Laura L Higgins, F. Benjamin Zhan, Judy Perkins, 2009 .