TY - JOUR AU - J. B. Nation TI - Unbounded semidistributive lattices JO - Algebra i logika PY - 2000 SP - 87 EP - 92 VL - 39 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AL_2000_39_1_a6/ LA - ru ID - AL_2000_39_1_a6 ER -