@misc{indiciaed79c94cca878,
  title = {NASCAP modelling computations on large optics spacecraft in geosynchronous substorm environments},
  author = {Stevens, N. J. and Purvis, C. K.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19800009830},
  note = {Source identifier: 19800009830}
}