@misc{indiciaeef060ff6b894,
  title = {The Sigma-D relation for shell-like supernova remnants},
  author = {Huang, Y.-L. and Thaddeus, P.},
  year = {1985},
  url = {https://ntrs.nasa.gov/citations/19850062208},
  note = {Source identifier: 19850062208}
}