@article{Pin21,
  volume = {42},
  year = {2021},
  journal = {Numerical Functional Analysis and Optimization},
  number = {3},
  author = {Pedro Pinto},
  title = {A rate of metastability for the Halpern type {P}roximal {P}oint
           {A}lgorithm},
  pages = {320-343},
}