TY - JOUR AU - Ježek, J. TI - Three-variable equations of posets JO - Czechoslovak Mathematical Journal PY - 2002 SP - 811 EP - 816 VL - 52 IS - 4 UR - http://geodesic.mathdoc.fr/item/CMJ_2002_52_4_a12/ LA - en ID - CMJ_2002_52_4_a12 ER -