@article{KazKolRol19,
  title = {Even Delta-Matroids and the Complexity of Planar Boolean CSPs},
  journal = {ACM Transactions on Algorithms},
  volume = {15},
  number = {2},
  pages = {1--33},
  year = {2019},
  note = {Article No. 22},
  slug = {kazkolrol19},
  author = {Kazda, A. and Kolmogorov, V.r and Rolinek, M.}
}