TY - JOUR AU - Young Bae Jun AU - Kyoung Ja Lee AU - Seok Zun Song TI - Quasi-valuation maps based on positive implicative ideals in BCK-algebras JO - Algebra and discrete mathematics PY - 2018 SP - 65 EP - 75 VL - 26 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ADM_2018_26_1_a6/ LA - en ID - ADM_2018_26_1_a6 ER -