@article{etna_vol23_pp76-87,
  author  = {L. Bergamaschi and R. Bru and A. Mart{\'i}nez and M. Putti},
  title   = {Quasi-Newton preconditioners for the inexact Newton method},
  journal = {Electron. Trans. Numer. Anal.},
  volume  = {23},
  year    = {2006},
  pages   = {76--87},
}