@misc{indiciaec7afcbf68759,
  title = {Tables of values of W(u) for several values of u[subscript]p and K},
  author = {R.W. Stallman},
  year = {1950},
  doi = {10.3133/ofr5097},
  url = {https://pubs.usgs.gov/publication/ofr5097},
  note = {Source identifier: ofr5097}
}