@article{Bus:03,
  journal = {Discrete Math.},
  volume = {263},
  title = {On extensions of pseudo-valuations on {H}ilbert algebras},
  year = {2003},
  fjournal = {Discrete Mathematics},
  pages = {11--24},
  number = {1-3},
  author = {Bu{\c{s}}neag, Dumitru},
}