@misc{indiciaed4cac2650778,
  title = {Cosmic ray modulation - Voyager 2 observations, 1987-1988},
  author = {Burlaga, L. F. and Mcdonald, F. B. and Ness, N. F. and Lazarus, A. J.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910043379},
  note = {Source identifier: 19910043379}
}