@misc{indiciaeb5579f4072ac,
  title = {A Computer Program for the Prediction of Ducted Fan Performance},
  author = {Mendenhall, Michael R. and Spangler, Selden B.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19700012375},
  note = {Source identifier: 19700012375}
}