@article{GoetschelMinion2019,
  author    = {Sebastian G{\"o}tschel and Michael L. Minion},
  title     = {An Efficient Parallel-in-Time Method for Optimization with Parabolic PDEs},
  journal   = {SIAM J. Sci. Comput.},
  volume    = {41},
  number    = {6},
  pages     = {C603 -- C626},
  doi       = {10.1137/19M1239313},
  year        = {2019},
}