@misc{indiciae854942d1dac0,
  title = {Analytical continuation for calculating multigroup-multizone eigenvalue problems using Lie series.},
  author = {Cap, F. and Schett, A.},
  year = {1966},
  url = {https://ntrs.nasa.gov/citations/19670044667},
  note = {Source identifier: 19670044667}
}