@misc{indiciae9347b1808faf,
  title = {Modular bus and payload designs for the Shuttle era},
  author = {Durrani, S. H. and Titland, M. N.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19760058831},
  note = {Source identifier: 19760058831}
}