@misc{indiciaef3b01db66790,
  title = {Galactic cosmic rays at solar minimum, 1965.},
  author = {Balasubrahmanyan, V. K. and Hagge, D. E. and Ludwig, G. H. and Mcdonald, F. B.},
  year = {1966},
  url = {https://ntrs.nasa.gov/citations/19660055557},
  note = {Source identifier: 19660055557}
}