@article{CaffarelliMarkowichPietschmann2011,
  author    = {Luis A. Caffarelli and Peter A. Markowich and Jan-Frederik Pietschmann},
  title     = {On a price formation free boundary model by Lasry and Lions},
  journal   = {Comptes Rendus Mathematique},
  volume    = {349},
  number    = {11-12},
  pages     = {621 -- 624},
  doi       = {10.1016/j.crma.2011.05.011},
  year      = {2011},
}