@article{Vai:06a,
  journal = {J. Mult.-Valued Logic Soft Comput.},
  volume = {12},
  title = {Note on a more general setting for complemented elements. {I}.
           {R}emarks from semirings theory},
  year = {2006},
  fjournal = {Journal of Multiple-Valued Logic and Soft Computing},
  pages = {275--284},
  number = {3-4},
  author = {Vaida, Dragos},
}