TY - JOUR AU - W. Dziobiak TI - Quasivarieties of Sugihara semilattices with involution JO - Algebra i logika PY - 2000 SP - 47 EP - 65 VL - 39 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AL_2000_39_1_a3/ LA - ru ID - AL_2000_39_1_a3 ER -