@article{Vai:01,
  journal = {Mult.-Valued Log.},
  volume = {6},
  title = {On partially additive semirings and applications},
  year = {2001},
  fjournal = {Multiple-Valued Logic. An International Journal},
  pages = {257--266},
  number = {1-2},
  author = {Vaida, Drago{\c{s}}},
  note = {G. C. Moisil memorial issue},
}