@misc{indiciae874773b71fde,
  title = {Non-linear difference equations and gauss- seidel type iterative methods},
  author = {Ortega, J. M. and Rockoff, M. L.},
  year = {1965},
  url = {https://ntrs.nasa.gov/citations/19650023680},
  note = {Source identifier: 19650023680}
}