|  | Combinatorial Bitstring Semantics for Arbitrary Logical Fragments, p. 331, by Demey, Lorenz; Smessaert, Hans | 2018 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
|  | Combinatorial Bitstring Semantics for Arbitrary Logical Fragments, p. 331, by Demey, Lorenz; Smessaert, Hans | 2018 | Sherwood-Czeżowski Sigma-3 | 4 | Hexagon |
|  | Combinatorial Bitstring Semantics for Arbitrary Logical Fragments, p. 331, by Demey, Lorenz; Smessaert, Hans | 2018 | Degenerate Sigma-3 with Unconnectedness 4 | 4 | Hexagon |
|  | Combinatorial Bitstring Semantics for Arbitrary Logical Fragments, p. 340, by Demey, Lorenz; Smessaert, Hans | 2018 | Classical Sigma-2 | 3 | Rectangle |
|  | Combinatorial Bitstring Semantics for Arbitrary Logical Fragments, p. 340, by Demey, Lorenz; Smessaert, Hans | 2018 | Classical Sigma-2 | 3 | Rectangle |
|  | Combinatorial Bitstring Semantics for Arbitrary Logical Fragments, p. 346, by Demey, Lorenz; Smessaert, Hans | 2018 | Classical Sigma-2 | 3 | Rectangle |
|  | Combinatorial Bitstring Semantics for Arbitrary Logical Fragments, p. 346, by Demey, Lorenz; Smessaert, Hans | 2018 | Degenerate Sigma-2 with Unconnectedness 4 | 4 | Rectangle |
|  | Combinatorial Bitstring Semantics for Arbitrary Logical Fragments, p. 348, by Demey, Lorenz; Smessaert, Hans | 2018 | Classical Sigma-2 | 3 | Rectangle |
|  | Combinatorial Bitstring Semantics for Arbitrary Logical Fragments, p. 348, by Demey, Lorenz; Smessaert, Hans | 2018 | Degenerate Sigma-2 with Unconnectedness 4 | 4 | Rectangle |
|  | Combinatorial Bitstring Semantics for Arbitrary Logical Fragments, p. 351, by Demey, Lorenz; Smessaert, Hans | 2018 | Jacoby-Sesmat-Blanché Sigma-3 | 3–4 | Hexagon |
|  | Combinatorial Bitstring Semantics for Arbitrary Logical Fragments, p. 351, by Demey, Lorenz; Smessaert, Hans | 2018 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
|  | Combinatorial Bitstring Semantics for Arbitrary Logical Fragments, p. 351, by Demey, Lorenz; Smessaert, Hans | 2018 | Jacoby-Sesmat-Blanché Sigma-3 | 4 | Hexagon |
|  | Combinatorial Bitstring Semantics for Arbitrary Logical Fragments, p. 352, by Demey, Lorenz; Smessaert, Hans | 2018 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
|  | Combinatorial Bitstring Semantics for Arbitrary Logical Fragments, p. 352, by Demey, Lorenz; Smessaert, Hans | 2018 | Jacoby-Sesmat-Blanché Sigma-3 | 4 | Hexagon |
|  | Combinatorial Bitstring Semantics for Arbitrary Logical Fragments, p. 353, by Demey, Lorenz; Smessaert, Hans | 2018 | Buridan Sigma-4 | 4–6 | Octagon |
|  | Combinatorial Bitstring Semantics for Arbitrary Logical Fragments, p. 353, by Demey, Lorenz; Smessaert, Hans | 2018 | Buridan Sigma-4 | 4 | Octagon |
|  | Combinatorial Bitstring Semantics for Arbitrary Logical Fragments, p. 353, by Demey, Lorenz; Smessaert, Hans | 2018 | Buridan Sigma-4 | 6 | Octagon |
|  | Combinatorial Bitstring Semantics for Arbitrary Logical Fragments, p. 355, by Demey, Lorenz; Smessaert, Hans | 2018 | Buridan Sigma-4 | 4 | Octagon |
|  | Combinatorial Bitstring Semantics for Arbitrary Logical Fragments, p. 355, by Demey, Lorenz; Smessaert, Hans | 2018 | Buridan Sigma-4 | 6 | Octagon |
|  | Combinatorial Bitstring Semantics for Arbitrary Logical Fragments, p. 358, by Demey, Lorenz; Smessaert, Hans | 2018 | Béziau Sigma-4 | 4 | Octagon |
|  | Combinatorial Bitstring Semantics for Arbitrary Logical Fragments, p. 358, by Demey, Lorenz; Smessaert, Hans | 2018 | Béziau Sigma-4 | 4 | Octagon |
|  | An Algorithm for Intermediate Quantifiers and the Graded Square of Opposition Towards Linguistic Description of Data, p. 599, by Murinová, Petra; Burda, Michal; Pavliska, Viktor | 2018 | Non-Sigma | | Square |
|  | Eiusque Manu Scriptus: Junípero Serra's Mallorcan Class Notes, p. 44, by Dagenais, John | 2018 | Classical Sigma-2 | 3 | Square |
|  | Oppositions in a Line Segment, p. 187, by Costa-Leite, Alexandre | 2018 | Classical Sigma-2 | 3 | Rectangle |
|  | Oppositions in a Line Segment, p. 189, by Costa-Leite, Alexandre | 2018 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |