@misc{indiciaec67cfe15f96d,
  title = {Short term evolution of coronal hole boundaries},
  author = {Nolte, J. T. and Krieger, A. S. and Solodyna, C. V.},
  year = {1978},
  url = {https://ntrs.nasa.gov/citations/19780056731},
  note = {Source identifier: 19780056731}
}