@misc{indiciaecd5f09ca5bc6,
  title = {Thermal energy storage/converter prototype design, fabrication and testing Final report},
  author = {Gunther, B. and Merra, S. and Pantazelos, P. G.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680007764},
  note = {Source identifier: 19680007764}
}