@misc{indiciae55e8ed68a147,
  title = {Variable-Volume Flushing (V-VF) device for water conservation in toilets},
  author = {Jasper, Louis J., Jr.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19930012978},
  note = {Source identifier: 19930012978}
}