@article{FloLeuI:04,
  journal = {Discrete Math.},
  volume = {274},
  title = {MV-algebras with operators (the commutative and the non-commutative
           case)},
  year = {2004},
  fjournal = {Discrete Mathematics},
  pages = {41--76},
  number = {1-3},
  author = {Flondor, Paul and Leu{\c{s}}tean, Ioana},
}