@misc{indiciaeea1886b08850,
  title = {Economic Comparison of Processes Using Spreadsheet Programs},
  author = {Ferrall, J. F. and Pappano, A. W. and Jennings, C. N.},
  year = {1986},
  url = {https://ntrs.nasa.gov/citations/19860000403},
  note = {Source identifier: 19860000403}
}