@misc{indiciaec2a3057d975d,
  title = {Geos 1 observations at Malvern, England},
  author = {Arnold, D. A. and Hewitt, J. and Rolff, J.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680020082},
  note = {Source identifier: 19680020082}
}