@article{BaerHanke2022,
  author    = {Christian B{\"a}r and Bernhard Hanke},
  title     = {Local flexibility for open partial differential relations},
  journal   = {Communications on pure and applied mathematics / issued by the Courant Institute of Mathematical Sciences, New York Univ.},
  volume    = {75},
  number    = {6},
  pages     = {1377 -- 1415},
  doi       = {10.1002/cpa.21982},
  year      = {2022},
}