@misc{indiciae70fd0294b34f,
  title = {Calculating a ceiling in the form of a shell rectangular in the plan},
  author = {Palmov, V. A. and Pervozvanskiy, A. A.},
  year = {1966},
  url = {https://ntrs.nasa.gov/citations/19670010782},
  note = {Source identifier: 19670010782}
}