TY - JOUR AU - Jakubík, Ján TI - Cardinal sums of linearly ordered groups JO - Czechoslovak Mathematical Journal PY - 1975 SP - 568 EP - 575 VL - 25 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1975.101353/ DO - 10.21136/CMJ.1975.101353 LA - en ID - 10_21136_CMJ_1975_101353 ER -