@misc{indiciae87f8dc9fd04f,
  title = {Alternating direction implicit methods for parabolic equations with a mixed derivative},
  author = {Beam, R. M. and Warming, R. F.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19800066880},
  note = {Source identifier: 19800066880}
}