@article{1988:fornberg,
  title = {Generation of Finite Difference Formulas on Arbitrarily Spaced Grids},
  author = {Fornberg, Bengt},
  year = {1988},
  volume = {51},
  pages = {699--706},
  issn = {0025-5718, 1088-6842},
  doi = {10.1090/S0025-5718-1988-0935077-0},
  journal = {Mathematics of Computation},
  language = {en},
  number = {184}
}
