TY - JOUR AU - Jakubík, Ján TI - Lattice ordered groups with unique addition must be archimedean JO - Czechoslovak Mathematical Journal PY - 1991 SP - 559 EP - 563 VL - 41 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1991.102489/ DO - 10.21136/CMJ.1991.102489 LA - en ID - 10_21136_CMJ_1991_102489 ER -