@misc{indiciaeeb294b2e3a33,
  title = {Innovative Concept for a Heavy-Load Aircraft Utilizing a Two-Dimensional Wing},
  author = {Spearman, M. Leroy},
  year = {2007},
  url = {https://ntrs.nasa.gov/citations/20070028871},
  note = {Source identifier: 20070028871}
}