@misc{indiciae841360dd0927,
  title = {Examining Periodic Solar-Wind Density Structures Observed in the SECCHI Heliospheric Imagers},
  author = {Viall, Nicholeen M. and Spence, Harlan E. and Vourlidas, Angelos and Howard, Russell},
  year = {2010},
  url = {https://ntrs.nasa.gov/citations/20110015363},
  note = {Source identifier: 20110015363}
}