TY  - BOOK
AU  - Feys,Robert
AU  - Dopp,Joseph
TI  - Modal logics
PY  - 1965///
CY  - Paris
PB  - Gauthier-Villars
KW  - Modality Logic
KW  - Local
KW  - Logic, Symbolic and mathematical
N1  - Bibliography : p. [187]-215
ER  -