@article{DiNoGeoIor:02a,
  journal = {Mult.-Valued Log.},
  volume = {8},
  title = {Pseudo-{BL} algebras. {I}},
  year = {2002},
  fjournal = {Multiple-Valued Logic. An International Journal},
  pages = {673--714},
  number = {5-6},
  author = {Di Nola, Antonio and Georgescu, George and Iorgulescu, Afrodita},
}