@misc{indiciae3a9092f2f5b3,
  title = {Software for Training in Pre-College Mathematics},
  author = {Shelton, Robert O. and Moebes, Travis A. and VanAlstine, Scot},
  year = {2003},
  url = {https://ntrs.nasa.gov/citations/20110023995},
  note = {Source identifier: 20110023995}
}