@misc{indiciae6255677b7924,
  title = {Bar-driven spiral waves in disk galaxies},
  author = {Huntley, J. M. and Sanders, R. H. and Roberts, W. W., Jr.},
  year = {1978},
  url = {https://ntrs.nasa.gov/citations/19780048558},
  note = {Source identifier: 19780048558}
}