@misc{indiciae364723c53e2a,
  title = {PETSc Developers Guide (Rev.3.9)},
  author = {Kruger, S. and Sanan, P. and Smith, B.},
  year = {2018},
  doi = {10.2172/1463256},
  url = {https://www.osti.gov/biblio/1463256},
  note = {Source identifier: 1463256}
}