@misc{indiciae7d506e00e329,
  title = {Space Systems Integrated Simulation (SPASIS)},
  author = {Stecklein, J. M. and Plowman, C. and Lewis, A. and Drake, B. and Leahy, K.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19900000654},
  note = {Source identifier: 19900000654}
}