@article{Rud:78b,
  journal = {Rev. Roumaine Math. Pures Appl.},
  volume = {23},
  title = {Injectivity domains of {B}oolean transformations},
  year = {1978},
  fjournal = {Acad\'emie de la R\'epublique Populaire Roumaine. Revue Roumaine
              de Math\'ematiques Pures et Appliqu\'ees},
  pages = {113--119},
  number = {1},
  author = {Rudeanu, Sergiu},
}