@misc{indiciaef126864355b0,
  title = {Absorption and Emission Characteristics of Diffuse Spherical Enclosures},
  author = {Sparrow, E. M. and Jonsson, V. K.},
  year = {1962},
  url = {https://ntrs.nasa.gov/citations/19620002825},
  note = {Source identifier: 19620002825}
}