@misc{indiciae32f372410e42,
  title = {High pressure rotary piston coal feeder},
  author = {Gardner, J. F. and Gencsoy, H. T. and Strimbeck, D. C.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19780005318},
  note = {Source identifier: 19780005318}
}