TY - JOUR AU - J. JakubĂ­k TI - Partially ordered groups with two disjoint elements JO - Colloquium Mathematicum PY - 1970 SP - 39 EP - 44 VL - 21 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-21-1-39-44/ DO - 10.4064/cm-21-1-39-44 LA - en ID - 10_4064_cm_21_1_39_44 ER -