@misc{indiciae729dbf15d3b2,
  title = {Unusual cosmic ray intensity decrease of 18 December 1965},
  author = {Desai, U. D. and Venkatesan, D.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19720008076},
  note = {Source identifier: 19720008076}
}