@article{AupyHHR16,
  author    = {Guillaume Aupy and
               Julien Herrmann and
               Paul Hovland and
               Yves Robert},
  title     = {Optimal Multistage Algorithm for Adjoint Computation},
  journal   = {{SIAM} J. Scientific Computing},
  volume    = {38},
  number    = {3},
  year      = {2016},
}