@misc{indiciaeb68046ad9b05,
  title = {Higher-order stationary-phase approximations in semiclassical scattering.},
  author = {Mason, E. A. and Smith, F. J. and Vanderslice, J. T.},
  year = {1965},
  url = {https://ntrs.nasa.gov/citations/19650051741},
  note = {Source identifier: 19650051741}
}