@misc{indiciaeb2547b01025a,
  title = {Future development of instructional television},
  author = {Barnett, H. J. and Denzau, A. T. and Dumolin, J. R. and Singh, J. P.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19720005483},
  note = {Source identifier: 19720005483}
}