@article{etna_vol38_pp202-217,
  author  = {Jo\~ao R. Cardoso},
  title   = {Evaluating the Fr\'echet derivative of the matrix $p$th root},
  journal = {Electron. Trans. Numer. Anal.},
  volume  = {38},
  year    = {2011},
  pages   = {202--217},
}