@misc{indiciae2351b3a8118d,
  title = {Cosmic-ray modulation, merged interaction regions, and multifractals},
  author = {Burlaga, L. F. and Perko, J. and Pirraglia, J.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19930050730},
  note = {Source identifier: 19930050730}
}