@misc{indiciaeb496ebb9e319,
  title = {The International Solar Polar Mission - A problem in constrained optimization},
  author = {Sweetser, T. H., III and Parmenter, M. E. and Pojman, J. L.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19810061423},
  note = {Source identifier: 19810061423}
}