@article{KarlNeitzelWachsmuth2020,
  author    = {Veronika Karl and Ira Neitzel and Daniel Wachsmuth},
  title     = {A Lagrange multiplier method for semilinear elliptic state constrained optimal control problems},
  journal   = {Computational Optimization and Applications},
  volume    = {77},
  doi       = {10.1007/s10589-020-00223-w},
  year      = {2020},
}