TY - JOUR AU - Degauquier, Vincent TI - Useful Four-Valued Extension of the Temporal Logic KtT4 JO - Bulletin of the Section of Logic PY - 2018 VL - 47 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/BSL_2018_47_1_a4/ LA - en ID - BSL_2018_47_1_a4 ER -