TY - JOUR AU - Zelinka, Bohdan TI - A remark on signed posets and signed graphs JO - Czechoslovak Mathematical Journal PY - 1988 SP - 673 EP - 676 VL - 38 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1988.102262/ DO - 10.21136/CMJ.1988.102262 LA - en ID - 10_21136_CMJ_1988_102262 ER -