@misc{indiciae5124b7ed24f7,
  title = {K. E. Tsiolkovskiy and the first practical steps in Soviet rocketry},
  author = {Biryukov, Yu. V.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19700016348},
  note = {Source identifier: 19700016348}
}