@misc{indiciae4350f39dde3b,
  title = {Copernicus spectra of beta Lyrae},
  author = {Hack, M. and Hutchings, J. B. and Kondo, Y. and Mccluskey, G. E. and Plavec, M. and Polidan, R. S.},
  year = {1974},
  url = {https://ntrs.nasa.gov/citations/19740050310},
  note = {Source identifier: 19740050310}
}