@misc{indiciae276a302f754a,
  title = {Solar source of interplanetary magnetic fields},
  author = {Colburn, D. S. and Severny, A. and Wilcox, J. M.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19700036090},
  note = {Source identifier: 19700036090}
}