@article{LeuSipNic2018,
  number = {3},
  journal = {Journal of Global Optimization},
  volume = {72},
  year = {2018},
  title = {An abstract proximal point algorithm},
  pages = {553--577},
  author = {Leu\c stean, Lauren\c tiu and Nicolae, Adriana and Sipo\c s,
            Andrei},
}