@misc{indiciae746e586a9f5f, title = {Prototype Tool and Focus Group Evaluation for an Advanced Trajectory-Based Operations Concept}, author = {Guerreiro, Nelson M. and Jones, Denise R. and Barmore, Bryan E. and Butler, Ricky W. and Hagen, George E. and Maddalon, Jeffrey M. and Ahmad, Nash'at N.}, year = {2017}, url = {https://ntrs.nasa.gov/citations/20170005763}, note = {Source identifier: 20170005763} }