TY - JOUR AU - Klaučová, Oľga TI - Lines in directed distributive multilattices JO - Mathematica slovaca PY - 1977 SP - 55 EP - 64 VL - 27 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MASLO_1977__27_1_a7/ LA - en ID - MASLO_1977__27_1_a7 ER -