@misc{indiciaed4da3eef1733, title = {Directed Acyclic Graphs: A Tool for Understanding the NASA Human Spaceflight System Risks - Human System Risk Board}, author = {Erik L. Antonsen and Avalon Monti and Jacqueline Charvat and Erin S. Connell and Robert J. Reynolds and Ahmed Abukmail and Kristina Marotta and Charlotte Brown}, year = {2022}, url = {https://ntrs.nasa.gov/citations/20220015709}, note = {Source identifier: 20220015709} }