@misc{indiciae3921aec98a23,
  title = {A combined integrating- and differentiating-matrix formulation for boundary-value problems on rectangular domains},
  author = {Lakin, W. D.},
  year = {1986},
  url = {https://ntrs.nasa.gov/citations/19870033996},
  note = {Source identifier: 19870033996}
}