@misc{indiciae1b1803dc7a68,
  title = {Frequency-Dependent Time Lags in Three Blazars},
  author = {Marscher, Alan P. and Jorstad, Svetlana G. and Aller, Margo F.},
  year = {2004},
  url = {https://ntrs.nasa.gov/citations/20040050618},
  note = {Source identifier: 20040050618}
}