@misc{indiciaeda8f526f1b88,
  title = {Astronomical Workshops for Elementary School Teachers},
  author = {Lebofsky, E. E. and Roettger, B. J and Hanner, L. A.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/20060038941},
  note = {Source identifier: 20060038941}
}