TY - RPRT TI - Unmanned Aircraft Systems (UAS) Controller Acceptability Study 3 (CAS3): Collision Avoidance, Self Separation, and Alerting Times (CASSAT): Combined PER/FER AU - Comstock, James R., Jr. AU - Consiglio, Maria C. AU - Ghatas, Rania W. AU - Vincent, Michael J. PY - 2015 UR - https://ntrs.nasa.gov/citations/20160006956 ID - 20160006956 ER -