@article{Rud:05,
  journal = {J. Mult.-Valued Logic Soft Comput.},
  volume = {11},
  title = {On complete and precomplete clones of truth functions},
  year = {2005},
  fjournal = {Journal of Multiple-Valued Logic and Soft Computing},
  pages = {19--49},
  number = {1-2},
  author = {Rudeanu, Sergiu},
}