@misc{indiciae37450601cfd5,
  title = {The optically thin dust shell of Nova Cygni 1978},
  author = {Gehrz, R. D. and Hackwell, J. A. and Grasdalen, G. I. and Neugebauer, G. and Sellgren, K. and Ney, E. P.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19800066210},
  note = {Source identifier: 19800066210}
}