@misc{indiciae4c442f6ed0d3,
  title = {A finite-step method for calculation of theoretical load distributions for arbitrary lifting surface arrangements at subsonic speeds},
  author = {Blackwell, J. A., Jr.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690021959},
  note = {Source identifier: 19690021959}
}