@misc{indiciaecd0f42eb34ce,
  title = {Sphere drag in solid rockets - Non-continuum and turbulence effects},
  author = {Nicholls, J. A. and Zarin, N. A.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19710060164},
  note = {Source identifier: 19710060164}
}