TY - JOUR TI - The optimistic and cautious semantics for inconsistent knowledge bases T3 - Acta cybernetica AU - Grant John PY - 1995 LA - English SN - 0324-721X UR - http://acta.bibl.u-szeged.hu/12541/1/cybernetica_012_numb_001_037-055.pdf ER -