@misc{indiciae6a46120a3ae5,
  title = {Diagonal inversion of lower-upper implicit schemes},
  author = {Yokota, Jeffrey W. and Caughey, David A. and Chima, Rodrick V.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19900036055},
  note = {Source identifier: 19900036055}
}