@misc{indiciaeecd87211c863,
  title = {Operational factors affecting microgravity levels in orbit},
  author = {Olsen, R. E. and Mockovciak, J., Jr.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19800034143},
  note = {Source identifier: 19800034143}
}