@misc{indiciae0b604a49b825,
  title = {RADIANT EMISSION CHARACTERISTICS OF DIFFUSE CONICAL CAVITIES},
  author = {Jonsson, V. K. and Sparrow, E. M.},
  year = {1963},
  url = {https://ntrs.nasa.gov/citations/19630024117},
  note = {Source identifier: 19630024117}
}