@misc{indiciaeef796b17ea24,
  title = {Modular space station phase B extension program cost and schedules. Volume 1: Cost and schedule estimating process and results},
  author = {Frassinelli, G. J.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720011237},
  note = {Source identifier: 19720011237}
}