@misc{indiciae3ccbf34157cf,
  title = {Plant Growth Module (PGM) conceptual design},
  author = {Schwartzkopf, Steven H. and Rasmussen, Daryl},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19880004473},
  note = {Source identifier: 19880004473}
}