@misc{indiciae4c4674b4f047,
  title = {Large space erectable structures - building block structures study},
  author = {Armstrong, W. H. and Skoumal, D. E. and Straayer, J. W.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19770020212},
  note = {Source identifier: 19770020212}
}