@article{arroyo2009estimation,
  title = {Estimation of the control parameter from symbolic sequences: Unimodal maps with variable critical point},
  author = {Arroyo, David and Alvarez, Gonzalo and Amig{\'o}, Jos{\'e} Mar{\'\i}a},
  journal = {Chaos: An Interdisciplinary Journal of Nonlinear Science},
  volume = {19},
  number = {2},
  pages = {023125},
  year = {2009},
  publisher = {AIP}
}