@misc{indiciae1d761969b2e7,
  title = {Solution of elliptic partial differential equations by fast Poisson solvers using a local relaxation factor. 2: Two-step method},
  author = {Chang, S. C.},
  year = {1986},
  url = {https://ntrs.nasa.gov/citations/19870005485},
  note = {Source identifier: 19870005485}
}