@misc{indiciaed1f07a316486,
  title = {Alternating direction implicit methods for parabolic equations with a mixed derivative},
  author = {Beam, R. M. and Warming, R. F.},
  year = {1979},
  url = {https://ntrs.nasa.gov/citations/19790012624},
  note = {Source identifier: 19790012624}
}