TY - RPRT TI - In-Trail Procedure Air Traffic Control Procedures Validation Simulation Study AU - Chartrand, Ryan C. AU - Hewitt, Katrin P. AU - Sweeney, Peter B. AU - Graff, Thomas J. AU - Jones, Kenneth M. PY - 2012 UR - https://ntrs.nasa.gov/citations/20120002577 ID - 20120002577 ER -