@misc{indiciaeb7c8e79a8680,
  title = {Interplanetary sector structure, 1962-1966.},
  author = {Ness, N. F. and Wilcox, J. M.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19680032671},
  note = {Source identifier: 19680032671}
}