Order:
  1.  97
    On Fuzzy Logic I Many‐valued rules of inference.Jan Pavelka - 1979 - Mathematical Logic Quarterly 25 (3-6):45-52.
  2.  46
    (1 other version)On Fuzzy Logic III. Semantical completeness of some many‐valued propositional calculi.Jan Pavelka - 1979 - Mathematical Logic Quarterly 25 (25‐29):447-464.
  3.  71
    On Fuzzy Logic II. Enriched residuated lattices and semantics of propositional calculi.Jan Pavelka - 1979 - Mathematical Logic Quarterly 25 (7-12):119-134.