@misc{indiciaed044a89fd18f,
  title = {Two-dimensional Chapman-Ferraro problem with neutral sheet. I - The boundary.},
  author = {Atkinson, G. and Unti, T.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19690036022},
  note = {Source identifier: 19690036022}
}