@misc{indiciae99417770f6f3,
  title = {Artificial gravity - The evolution of variable gravity research},
  author = {Fuller, Charles A. and Sulzman, Frank M. and Keefe, J. Richard},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19880028949},
  note = {Source identifier: 19880028949}
}