@misc{indiciaeecfe03d53337,
  title = {Silent and Efficient Supersonic Bi-Directional Flying Wing},
  author = {Zha, Gecheng and Cattafesta, Louis and Alvi, Farrukh S.},
  year = {2013},
  url = {https://ntrs.nasa.gov/citations/20180008687},
  note = {Source identifier: 20180008687}
}