@misc{indiciae39864f77a764,
  title = {A comparison of methods for computing the sigma-coordinate pressure gradient force for flow over sloped terrain in a hybrid theta-sigma model},
  author = {Johnson, D. R. and Uccellini, L. W.},
  year = {1983},
  url = {https://ntrs.nasa.gov/citations/19830054819},
  note = {Source identifier: 19830054819}
}